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Finding the Fourth Proportional to 480,775.71, 721,330.83 and 181,342.20

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Solution

The fourth proportional to 480,775.71, 721,330.83 and 181,342.20 is: 272,076.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,775.71 : 721,330.83 = 181,342.20 : x
  2. Step 2: Convert to fraction form
    480,775.71/721,330.83 = 181,342.20/x
  3. Step 3: Cross multiply
    480,775.71x = 721,330.83 × 181,342.20
  4. Step 4: Simplify right side
    480,775.71x = 130,807,719,640.03
  5. Step 5: Solve for x
    x = 130,807,719,640.03/480,775.71
  6. Step 6: Final answer
    x = 272,076.39

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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.