Home / 425,583.52-587,301.28-231,991.20

Finding the Fourth Proportional to 425,583.52, 587,301.28 and 231,991.20

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Solution

The fourth proportional to 425,583.52, 587,301.28 and 231,991.20 is: 320,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,583.52 : 587,301.28 = 231,991.20 : x
  2. Step 2: Convert to fraction form
    425,583.52/587,301.28 = 231,991.20/x
  3. Step 3: Cross multiply
    425,583.52x = 587,301.28 × 231,991.20
  4. Step 4: Simplify right side
    425,583.52x = 136,248,728,708.74
  5. Step 5: Solve for x
    x = 136,248,728,708.74/425,583.52
  6. Step 6: Final answer
    x = 320,145.69

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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.