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Finding the Fourth Proportional to 545,168, 752,251.10 and 327,330.66

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Solution

The fourth proportional to 545,168, 752,251.10 and 327,330.66 is: 451,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,168 : 752,251.10 = 327,330.66 : x
  2. Step 2: Convert to fraction form
    545,168/752,251.10 = 327,330.66/x
  3. Step 3: Cross multiply
    545,168x = 752,251.10 × 327,330.66
  4. Step 4: Simplify right side
    545,168x = 246,234,849,048.73
  5. Step 5: Solve for x
    x = 246,234,849,048.73/545,168
  6. Step 6: Final answer
    x = 451,667.83

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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.