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Finding the Fourth Proportional to 352,765.52, 486,629.80 and 223,475.92

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Solution

The fourth proportional to 352,765.52, 486,629.80 and 223,475.92 is: 308,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,765.52 : 486,629.80 = 223,475.92 : x
  2. Step 2: Convert to fraction form
    352,765.52/486,629.80 = 223,475.92/x
  3. Step 3: Cross multiply
    352,765.52x = 486,629.80 × 223,475.92
  4. Step 4: Simplify right side
    352,765.52x = 108,750,042,254.42
  5. Step 5: Solve for x
    x = 108,750,042,254.42/352,765.52
  6. Step 6: Final answer
    x = 308,278.55

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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.