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Finding the Fourth Proportional to 487,874.12, 731,880.90 and 150,943.55

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Solution

The fourth proportional to 487,874.12, 731,880.90 and 150,943.55 is: 226,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,874.12 : 731,880.90 = 150,943.55 : x
  2. Step 2: Convert to fraction form
    487,874.12/731,880.90 = 150,943.55/x
  3. Step 3: Cross multiply
    487,874.12x = 731,880.90 × 150,943.55
  4. Step 4: Simplify right side
    487,874.12x = 110,472,697,563.79
  5. Step 5: Solve for x
    x = 110,472,697,563.79/487,874.12
  6. Step 6: Final answer
    x = 226,436.89

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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.