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Finding the Fourth Proportional to 317,546.64, 438,212.68 and 174,309.20

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Solution

The fourth proportional to 317,546.64, 438,212.68 and 174,309.20 is: 240,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,546.64 : 438,212.68 = 174,309.20 : x
  2. Step 2: Convert to fraction form
    317,546.64/438,212.68 = 174,309.20/x
  3. Step 3: Cross multiply
    317,546.64x = 438,212.68 × 174,309.20
  4. Step 4: Simplify right side
    317,546.64x = 76,384,501,680.66
  5. Step 5: Solve for x
    x = 76,384,501,680.66/317,546.64
  6. Step 6: Final answer
    x = 240,545.77

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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.