Home / 218,719.34-328,208.18-92,351.41

Finding the Fourth Proportional to 218,719.34, 328,208.18 and 92,351.41

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Solution

The fourth proportional to 218,719.34, 328,208.18 and 92,351.41 is: 138,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,719.34 : 328,208.18 = 92,351.41 : x
  2. Step 2: Convert to fraction form
    218,719.34/328,208.18 = 92,351.41/x
  3. Step 3: Cross multiply
    218,719.34x = 328,208.18 × 92,351.41
  4. Step 4: Simplify right side
    218,719.34x = 30,310,487,433.73
  5. Step 5: Solve for x
    x = 30,310,487,433.73/218,719.34
  6. Step 6: Final answer
    x = 138,581.65

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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.