Home / 389,433.24-585,240.42-231,686.04

Finding the Fourth Proportional to 389,433.24, 585,240.42 and 231,686.04

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Solution

The fourth proportional to 389,433.24, 585,240.42 and 231,686.04 is: 348,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,433.24 : 585,240.42 = 231,686.04 : x
  2. Step 2: Convert to fraction form
    389,433.24/585,240.42 = 231,686.04/x
  3. Step 3: Cross multiply
    389,433.24x = 585,240.42 × 231,686.04
  4. Step 4: Simplify right side
    389,433.24x = 135,592,035,357.74
  5. Step 5: Solve for x
    x = 135,592,035,357.74/389,433.24
  6. Step 6: Final answer
    x = 348,177.87

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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.