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Finding the Fourth Proportional to 224,006.45, 309,128.81 and 123,404.45

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Solution

The fourth proportional to 224,006.45, 309,128.81 and 123,404.45 is: 170,298.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,006.45 : 309,128.81 = 123,404.45 : x
  2. Step 2: Convert to fraction form
    224,006.45/309,128.81 = 123,404.45/x
  3. Step 3: Cross multiply
    224,006.45x = 309,128.81 × 123,404.45
  4. Step 4: Simplify right side
    224,006.45x = 38,147,868,614.54
  5. Step 5: Solve for x
    x = 38,147,868,614.54/224,006.45
  6. Step 6: Final answer
    x = 170,298.09

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1.5x scale

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.