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Finding the Fourth Proportional to 155,588.40, 217,357.20 and 155,588.40

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Solution

The fourth proportional to 155,588.40, 217,357.20 and 155,588.40 is: 217,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,588.40 : 217,357.20 = 155,588.40 : x
  2. Step 2: Convert to fraction form
    155,588.40/217,357.20 = 155,588.40/x
  3. Step 3: Cross multiply
    155,588.40x = 217,357.20 × 155,588.40
  4. Step 4: Simplify right side
    155,588.40x = 33,818,258,976.48
  5. Step 5: Solve for x
    x = 33,818,258,976.48/155,588.40
  6. Step 6: Final answer
    x = 217,357.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.