Home / 352,002.10-527,081.55-257,998.90

Finding the Fourth Proportional to 352,002.10, 527,081.55 and 257,998.90

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Solution

The fourth proportional to 352,002.10, 527,081.55 and 257,998.90 is: 386,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,002.10 : 527,081.55 = 257,998.90 : x
  2. Step 2: Convert to fraction form
    352,002.10/527,081.55 = 257,998.90/x
  3. Step 3: Cross multiply
    352,002.10x = 527,081.55 × 257,998.90
  4. Step 4: Simplify right side
    352,002.10x = 135,986,460,110.30
  5. Step 5: Solve for x
    x = 135,986,460,110.30/352,002.10
  6. Step 6: Final answer
    x = 386,322.87

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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.