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Finding the Fourth Proportional to 661,407.31, 992,004.72 and 181,523.08

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Solution

The fourth proportional to 661,407.31, 992,004.72 and 181,523.08 is: 272,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,407.31 : 992,004.72 = 181,523.08 : x
  2. Step 2: Convert to fraction form
    661,407.31/992,004.72 = 181,523.08/x
  3. Step 3: Cross multiply
    661,407.31x = 992,004.72 × 181,523.08
  4. Step 4: Simplify right side
    661,407.31x = 180,071,752,148.94
  5. Step 5: Solve for x
    x = 180,071,752,148.94/661,407.31
  6. Step 6: Final answer
    x = 272,255.46

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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.