Home / 485,147.16-727,861.14-200,785.20

Finding the Fourth Proportional to 485,147.16, 727,861.14 and 200,785.20

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Solution

The fourth proportional to 485,147.16, 727,861.14 and 200,785.20 is: 301,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,147.16 : 727,861.14 = 200,785.20 : x
  2. Step 2: Convert to fraction form
    485,147.16/727,861.14 = 200,785.20/x
  3. Step 3: Cross multiply
    485,147.16x = 727,861.14 × 200,785.20
  4. Step 4: Simplify right side
    485,147.16x = 146,143,744,567.13
  5. Step 5: Solve for x
    x = 146,143,744,567.13/485,147.16
  6. Step 6: Final answer
    x = 301,235.91

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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.