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Finding the Fourth Proportional to 207,572.40, 311,358.60 and 187,233.30

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Solution

The fourth proportional to 207,572.40, 311,358.60 and 187,233.30 is: 280,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,572.40 : 311,358.60 = 187,233.30 : x
  2. Step 2: Convert to fraction form
    207,572.40/311,358.60 = 187,233.30/x
  3. Step 3: Cross multiply
    207,572.40x = 311,358.60 × 187,233.30
  4. Step 4: Simplify right side
    207,572.40x = 58,296,698,161.38
  5. Step 5: Solve for x
    x = 58,296,698,161.38/207,572.40
  6. Step 6: Final answer
    x = 280,849.95

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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.