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Finding the Fourth Proportional to 661,414.80, 992,015.96 and 181,530.60

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Solution

The fourth proportional to 661,414.80, 992,015.96 and 181,530.60 is: 272,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,414.80 : 992,015.96 = 181,530.60 : x
  2. Step 2: Convert to fraction form
    661,414.80/992,015.96 = 181,530.60/x
  3. Step 3: Cross multiply
    661,414.80x = 992,015.96 × 181,530.60
  4. Step 4: Simplify right side
    661,414.80x = 180,081,252,428.38
  5. Step 5: Solve for x
    x = 180,081,252,428.38/661,414.80
  6. Step 6: Final answer
    x = 272,266.74

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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.