Home / 325,132.40-487,261.20-231,528.80

Finding the Fourth Proportional to 325,132.40, 487,261.20 and 231,528.80

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Solution

The fourth proportional to 325,132.40, 487,261.20 and 231,528.80 is: 346,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,132.40 : 487,261.20 = 231,528.80 : x
  2. Step 2: Convert to fraction form
    325,132.40/487,261.20 = 231,528.80/x
  3. Step 3: Cross multiply
    325,132.40x = 487,261.20 × 231,528.80
  4. Step 4: Simplify right side
    325,132.40x = 112,815,000,922.56
  5. Step 5: Solve for x
    x = 112,815,000,922.56/325,132.40
  6. Step 6: Final answer
    x = 346,981.72

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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.