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Finding the Fourth Proportional to 145,045.31, 217,514.81 and 50,251.01

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Solution

The fourth proportional to 145,045.31, 217,514.81 and 50,251.01 is: 75,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,045.31 : 217,514.81 = 50,251.01 : x
  2. Step 2: Convert to fraction form
    145,045.31/217,514.81 = 50,251.01/x
  3. Step 3: Cross multiply
    145,045.31x = 217,514.81 × 50,251.01
  4. Step 4: Simplify right side
    145,045.31x = 10,930,338,892.46
  5. Step 5: Solve for x
    x = 10,930,338,892.46/145,045.31
  6. Step 6: Final answer
    x = 75,358.10

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1.5x scale

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.