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Finding the Fourth Proportional to 317,613.76, 438,310.64 and 174,370.73

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Solution

The fourth proportional to 317,613.76, 438,310.64 and 174,370.73 is: 240,633.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,613.76 : 438,310.64 = 174,370.73 : x
  2. Step 2: Convert to fraction form
    317,613.76/438,310.64 = 174,370.73/x
  3. Step 3: Cross multiply
    317,613.76x = 438,310.64 × 174,370.73
  4. Step 4: Simplify right side
    317,613.76x = 76,428,544,507.94
  5. Step 5: Solve for x
    x = 76,428,544,507.94/317,613.76
  6. Step 6: Final answer
    x = 240,633.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.