Home / 218,748.30-328,122.45-217,365.90

Finding the Fourth Proportional to 218,748.30, 328,122.45 and 217,365.90

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Solution

The fourth proportional to 218,748.30, 328,122.45 and 217,365.90 is: 326,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,748.30 : 328,122.45 = 217,365.90 : x
  2. Step 2: Convert to fraction form
    218,748.30/328,122.45 = 217,365.90/x
  3. Step 3: Cross multiply
    218,748.30x = 328,122.45 × 217,365.90
  4. Step 4: Simplify right side
    218,748.30x = 71,322,631,654.46
  5. Step 5: Solve for x
    x = 71,322,631,654.46/218,748.30
  6. Step 6: Final answer
    x = 326,048.85

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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.