Home / 485,219.96-727,729.56-130,149.52

Finding the Fourth Proportional to 485,219.96, 727,729.56 and 130,149.52

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Solution

The fourth proportional to 485,219.96, 727,729.56 and 130,149.52 is: 195,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,219.96 : 727,729.56 = 130,149.52 : x
  2. Step 2: Convert to fraction form
    485,219.96/727,729.56 = 130,149.52/x
  3. Step 3: Cross multiply
    485,219.96x = 727,729.56 × 130,149.52
  4. Step 4: Simplify right side
    485,219.96x = 94,713,652,923.81
  5. Step 5: Solve for x
    x = 94,713,652,923.81/485,219.96
  6. Step 6: Final answer
    x = 195,197.36

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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.