Home / 218,760.54-328,159.34-60,989.15

Finding the Fourth Proportional to 218,760.54, 328,159.34 and 60,989.15

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Solution

The fourth proportional to 218,760.54, 328,159.34 and 60,989.15 is: 91,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,760.54 : 328,159.34 = 60,989.15 : x
  2. Step 2: Convert to fraction form
    218,760.54/328,159.34 = 60,989.15/x
  3. Step 3: Cross multiply
    218,760.54x = 328,159.34 × 60,989.15
  4. Step 4: Simplify right side
    218,760.54x = 20,014,157,265.42
  5. Step 5: Solve for x
    x = 20,014,157,265.42/218,760.54
  6. Step 6: Final answer
    x = 91,488.88

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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.