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Finding the Fourth Proportional to 207,225.52, 310,838.28 and 137,088.43

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Solution

The fourth proportional to 207,225.52, 310,838.28 and 137,088.43 is: 205,632.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,225.52 : 310,838.28 = 137,088.43 : x
  2. Step 2: Convert to fraction form
    207,225.52/310,838.28 = 137,088.43/x
  3. Step 3: Cross multiply
    207,225.52x = 310,838.28 × 137,088.43
  4. Step 4: Simplify right side
    207,225.52x = 42,612,331,789.10
  5. Step 5: Solve for x
    x = 42,612,331,789.10/207,225.52
  6. Step 6: Final answer
    x = 205,632.65

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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.