Home / 257,549.40-386,324.10-243,115.20

Finding the Fourth Proportional to 257,549.40, 386,324.10 and 243,115.20

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Solution

The fourth proportional to 257,549.40, 386,324.10 and 243,115.20 is: 364,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,549.40 : 386,324.10 = 243,115.20 : x
  2. Step 2: Convert to fraction form
    257,549.40/386,324.10 = 243,115.20/x
  3. Step 3: Cross multiply
    257,549.40x = 386,324.10 × 243,115.20
  4. Step 4: Simplify right side
    257,549.40x = 93,921,260,836.32
  5. Step 5: Solve for x
    x = 93,921,260,836.32/257,549.40
  6. Step 6: Final answer
    x = 364,672.80

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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.