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Finding the Fourth Proportional to 537,762.25, 806,637.88 and 138,401.47

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Solution

The fourth proportional to 537,762.25, 806,637.88 and 138,401.47 is: 207,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,762.25 : 806,637.88 = 138,401.47 : x
  2. Step 2: Convert to fraction form
    537,762.25/806,637.88 = 138,401.47/x
  3. Step 3: Cross multiply
    537,762.25x = 806,637.88 × 138,401.47
  4. Step 4: Simplify right side
    537,762.25x = 111,639,863,624.49
  5. Step 5: Solve for x
    x = 111,639,863,624.49/537,762.25
  6. Step 6: Final answer
    x = 207,600.78

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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.