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Finding the Fourth Proportional to 480,778.71, 721,335.33 and 181,345.20

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Solution

The fourth proportional to 480,778.71, 721,335.33 and 181,345.20 is: 272,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,778.71 : 721,335.33 = 181,345.20 : x
  2. Step 2: Convert to fraction form
    480,778.71/721,335.33 = 181,345.20/x
  3. Step 3: Cross multiply
    480,778.71x = 721,335.33 × 181,345.20
  4. Step 4: Simplify right side
    480,778.71x = 130,810,699,685.92
  5. Step 5: Solve for x
    x = 130,810,699,685.92/480,778.71
  6. Step 6: Final answer
    x = 272,080.89

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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.