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Finding the Fourth Proportional to 661,379.98, 991,963.76 and 181,495.70

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Solution

The fourth proportional to 661,379.98, 991,963.76 and 181,495.70 is: 272,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,379.98 : 991,963.76 = 181,495.70 : x
  2. Step 2: Convert to fraction form
    661,379.98/991,963.76 = 181,495.70/x
  3. Step 3: Cross multiply
    661,379.98x = 991,963.76 × 181,495.70
  4. Step 4: Simplify right side
    661,379.98x = 180,037,156,995.83
  5. Step 5: Solve for x
    x = 180,037,156,995.83/661,379.98
  6. Step 6: Final answer
    x = 272,214.40

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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.