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Finding the Fourth Proportional to 480,685.61, 721,029.96 and 181,085.73

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Solution

The fourth proportional to 480,685.61, 721,029.96 and 181,085.73 is: 271,629.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,685.61 : 721,029.96 = 181,085.73 : x
  2. Step 2: Convert to fraction form
    480,685.61/721,029.96 = 181,085.73/x
  3. Step 3: Cross multiply
    480,685.61x = 721,029.96 × 181,085.73
  4. Step 4: Simplify right side
    480,685.61x = 130,568,236,658.47
  5. Step 5: Solve for x
    x = 130,568,236,658.47/480,685.61
  6. Step 6: Final answer
    x = 271,629.18

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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.