Home / 485,220.96-727,731.06-130,150.52

Finding the Fourth Proportional to 485,220.96, 727,731.06 and 130,150.52

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Solution

The fourth proportional to 485,220.96, 727,731.06 and 130,150.52 is: 195,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,220.96 : 727,731.06 = 130,150.52 : x
  2. Step 2: Convert to fraction form
    485,220.96/727,731.06 = 130,150.52/x
  3. Step 3: Cross multiply
    485,220.96x = 727,731.06 × 130,150.52
  4. Step 4: Simplify right side
    485,220.96x = 94,714,575,879.15
  5. Step 5: Solve for x
    x = 94,714,575,879.15/485,220.96
  6. Step 6: Final answer
    x = 195,198.86

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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.