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Finding the Fourth Proportional to 224,031.86, 309,163.79 and 123,429.86

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Solution

The fourth proportional to 224,031.86, 309,163.79 and 123,429.86 is: 170,333.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,031.86 : 309,163.79 = 123,429.86 : x
  2. Step 2: Convert to fraction form
    224,031.86/309,163.79 = 123,429.86/x
  3. Step 3: Cross multiply
    224,031.86x = 309,163.79 × 123,429.86
  4. Step 4: Simplify right side
    224,031.86x = 38,160,042,079.53
  5. Step 5: Solve for x
    x = 38,160,042,079.53/224,031.86
  6. Step 6: Final answer
    x = 170,333.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.