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Finding the Fourth Proportional to 453,391.40, 680,125.18 and 137,851.04

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Solution

The fourth proportional to 453,391.40, 680,125.18 and 137,851.04 is: 206,788.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,391.40 : 680,125.18 = 137,851.04 : x
  2. Step 2: Convert to fraction form
    453,391.40/680,125.18 = 137,851.04/x
  3. Step 3: Cross multiply
    453,391.40x = 680,125.18 × 137,851.04
  4. Step 4: Simplify right side
    453,391.40x = 93,755,963,393.19
  5. Step 5: Solve for x
    x = 93,755,963,393.19/453,391.40
  6. Step 6: Final answer
    x = 206,788.14

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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.