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Finding the Fourth Proportional to 243,397.96, 365,097.66 and 74,917

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Solution

The fourth proportional to 243,397.96, 365,097.66 and 74,917 is: 112,375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,397.96 : 365,097.66 = 74,917 : x
  2. Step 2: Convert to fraction form
    243,397.96/365,097.66 = 74,917/x
  3. Step 3: Cross multiply
    243,397.96x = 365,097.66 × 74,917
  4. Step 4: Simplify right side
    243,397.96x = 27,352,021,394.22
  5. Step 5: Solve for x
    x = 27,352,021,394.22/243,397.96
  6. Step 6: Final answer
    x = 112,375.72

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1.5x scale

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.