Home / 431,331.08-647,074.37-147,005.89

Finding the Fourth Proportional to 431,331.08, 647,074.37 and 147,005.89

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Solution

The fourth proportional to 431,331.08, 647,074.37 and 147,005.89 is: 220,535.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,331.08 : 647,074.37 = 147,005.89 : x
  2. Step 2: Convert to fraction form
    431,331.08/647,074.37 = 147,005.89/x
  3. Step 3: Cross multiply
    431,331.08x = 647,074.37 × 147,005.89
  4. Step 4: Simplify right side
    431,331.08x = 95,123,742,407.87
  5. Step 5: Solve for x
    x = 95,123,742,407.87/431,331.08
  6. Step 6: Final answer
    x = 220,535.33

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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.