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Finding the Fourth Proportional to 345,170.92, 517,779.82 and 117,373.74

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Solution

The fourth proportional to 345,170.92, 517,779.82 and 117,373.74 is: 176,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,170.92 : 517,779.82 = 117,373.74 : x
  2. Step 2: Convert to fraction form
    345,170.92/517,779.82 = 117,373.74/x
  3. Step 3: Cross multiply
    345,170.92x = 517,779.82 × 117,373.74
  4. Step 4: Simplify right side
    345,170.92x = 60,773,753,969.93
  5. Step 5: Solve for x
    x = 60,773,753,969.93/345,170.92
  6. Step 6: Final answer
    x = 176,068.58

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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.