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Finding the Fourth Proportional to 235,380.75, 353,071.13 and 69,168.75

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Solution

The fourth proportional to 235,380.75, 353,071.13 and 69,168.75 is: 103,753.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,380.75 : 353,071.13 = 69,168.75 : x
  2. Step 2: Convert to fraction form
    235,380.75/353,071.13 = 69,168.75/x
  3. Step 3: Cross multiply
    235,380.75x = 353,071.13 × 69,168.75
  4. Step 4: Simplify right side
    235,380.75x = 24,421,488,377.34
  5. Step 5: Solve for x
    x = 24,421,488,377.34/235,380.75
  6. Step 6: Final answer
    x = 103,753.13

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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.