Home / 425,288.12-586,890.74-231,698.15

Finding the Fourth Proportional to 425,288.12, 586,890.74 and 231,698.15

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Solution

The fourth proportional to 425,288.12, 586,890.74 and 231,698.15 is: 319,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,288.12 : 586,890.74 = 231,698.15 : x
  2. Step 2: Convert to fraction form
    425,288.12/586,890.74 = 231,698.15/x
  3. Step 3: Cross multiply
    425,288.12x = 586,890.74 × 231,698.15
  4. Step 4: Simplify right side
    425,288.12x = 135,981,496,084.41
  5. Step 5: Solve for x
    x = 135,981,496,084.41/425,288.12
  6. Step 6: Final answer
    x = 319,739.70

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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.