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Finding the Fourth Proportional to 317,471.47, 438,109.36 and 174,233.87

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Solution

The fourth proportional to 317,471.47, 438,109.36 and 174,233.87 is: 240,442.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,471.47 : 438,109.36 = 174,233.87 : x
  2. Step 2: Convert to fraction form
    317,471.47/438,109.36 = 174,233.87/x
  3. Step 3: Cross multiply
    317,471.47x = 438,109.36 × 174,233.87
  4. Step 4: Simplify right side
    317,471.47x = 76,333,488,404.85
  5. Step 5: Solve for x
    x = 76,333,488,404.85/317,471.47
  6. Step 6: Final answer
    x = 240,442.04

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1.5x scale

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.