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Finding the Fourth Proportional to 207,330.60, 310,995.90 and 88,981.80

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Solution

The fourth proportional to 207,330.60, 310,995.90 and 88,981.80 is: 133,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,330.60 : 310,995.90 = 88,981.80 : x
  2. Step 2: Convert to fraction form
    207,330.60/310,995.90 = 88,981.80/x
  3. Step 3: Cross multiply
    207,330.60x = 310,995.90 × 88,981.80
  4. Step 4: Simplify right side
    207,330.60x = 27,672,974,974.62
  5. Step 5: Solve for x
    x = 27,672,974,974.62/207,330.60
  6. Step 6: Final answer
    x = 133,472.70

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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.