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Finding the Fourth Proportional to 218,219.70, 327,329.55 and 165,731.70

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Solution

The fourth proportional to 218,219.70, 327,329.55 and 165,731.70 is: 248,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,219.70 : 327,329.55 = 165,731.70 : x
  2. Step 2: Convert to fraction form
    218,219.70/327,329.55 = 165,731.70/x
  3. Step 3: Cross multiply
    218,219.70x = 327,329.55 × 165,731.70
  4. Step 4: Simplify right side
    218,219.70x = 54,248,882,781.74
  5. Step 5: Solve for x
    x = 54,248,882,781.74/218,219.70
  6. Step 6: Final answer
    x = 248,597.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.