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Finding the Fourth Proportional to 661,379.73, 991,963.38 and 181,495.45

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Solution

The fourth proportional to 661,379.73, 991,963.38 and 181,495.45 is: 272,214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,379.73 : 991,963.38 = 181,495.45 : x
  2. Step 2: Convert to fraction form
    661,379.73/991,963.38 = 181,495.45/x
  3. Step 3: Cross multiply
    661,379.73x = 991,963.38 × 181,495.45
  4. Step 4: Simplify right side
    661,379.73x = 180,036,841,957.18
  5. Step 5: Solve for x
    x = 180,036,841,957.18/661,379.73
  6. Step 6: Final answer
    x = 272,214.03

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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.