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Finding the Fourth Proportional to 151,423.80, 227,135.70 and 72,497.40

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Solution

The fourth proportional to 151,423.80, 227,135.70 and 72,497.40 is: 108,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,423.80 : 227,135.70 = 72,497.40 : x
  2. Step 2: Convert to fraction form
    151,423.80/227,135.70 = 72,497.40/x
  3. Step 3: Cross multiply
    151,423.80x = 227,135.70 × 72,497.40
  4. Step 4: Simplify right side
    151,423.80x = 16,466,747,697.18
  5. Step 5: Solve for x
    x = 16,466,747,697.18/151,423.80
  6. Step 6: Final answer
    x = 108,746.10

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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.