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Finding the Fourth Proportional to 425,288.25, 586,890.90 and 231,698.27

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Solution

The fourth proportional to 425,288.25, 586,890.90 and 231,698.27 is: 319,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,288.25 : 586,890.90 = 231,698.27 : x
  2. Step 2: Convert to fraction form
    425,288.25/586,890.90 = 231,698.27/x
  3. Step 3: Cross multiply
    425,288.25x = 586,890.90 × 231,698.27
  4. Step 4: Simplify right side
    425,288.25x = 135,981,608,544.84
  5. Step 5: Solve for x
    x = 135,981,608,544.84/425,288.25
  6. Step 6: Final answer
    x = 319,739.87

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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.