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Finding the Fourth Proportional to 555,306.40, 832,959.60 and 155,960.20

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Solution

The fourth proportional to 555,306.40, 832,959.60 and 155,960.20 is: 233,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,306.40 : 832,959.60 = 155,960.20 : x
  2. Step 2: Convert to fraction form
    555,306.40/832,959.60 = 155,960.20/x
  3. Step 3: Cross multiply
    555,306.40x = 832,959.60 × 155,960.20
  4. Step 4: Simplify right side
    555,306.40x = 129,908,545,807.92
  5. Step 5: Solve for x
    x = 129,908,545,807.92/555,306.40
  6. Step 6: Final answer
    x = 233,940.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.