Home / 485,200.38-727,700.34-130,130

Finding the Fourth Proportional to 485,200.38, 727,700.34 and 130,130

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Solution

The fourth proportional to 485,200.38, 727,700.34 and 130,130 is: 195,168.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,200.38 : 727,700.34 = 130,130 : x
  2. Step 2: Convert to fraction form
    485,200.38/727,700.34 = 130,130/x
  3. Step 3: Cross multiply
    485,200.38x = 727,700.34 × 130,130
  4. Step 4: Simplify right side
    485,200.38x = 94,695,645,244.20
  5. Step 5: Solve for x
    x = 94,695,645,244.20/485,200.38
  6. Step 6: Final answer
    x = 195,168.12

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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.