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Finding the Fourth Proportional to 370,285.80, 555,369.30 and 133,506.60

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Solution

The fourth proportional to 370,285.80, 555,369.30 and 133,506.60 is: 200,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,285.80 : 555,369.30 = 133,506.60 : x
  2. Step 2: Convert to fraction form
    370,285.80/555,369.30 = 133,506.60/x
  3. Step 3: Cross multiply
    370,285.80x = 555,369.30 × 133,506.60
  4. Step 4: Simplify right side
    370,285.80x = 74,145,466,987.38
  5. Step 5: Solve for x
    x = 74,145,466,987.38/370,285.80
  6. Step 6: Final answer
    x = 200,238.48

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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.