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Finding the Fourth Proportional to 537,439.95, 806,160.54 and 138,084.03

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Solution

The fourth proportional to 537,439.95, 806,160.54 and 138,084.03 is: 207,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,439.95 : 806,160.54 = 138,084.03 : x
  2. Step 2: Convert to fraction form
    537,439.95/806,160.54 = 138,084.03/x
  3. Step 3: Cross multiply
    537,439.95x = 806,160.54 × 138,084.03
  4. Step 4: Simplify right side
    537,439.95x = 111,317,896,190.18
  5. Step 5: Solve for x
    x = 111,317,896,190.18/537,439.95
  6. Step 6: Final answer
    x = 207,126.20

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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.