Home / 218,290.50-327,490.25-76,137.82

Finding the Fourth Proportional to 218,290.50, 327,490.25 and 76,137.82

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Solution

The fourth proportional to 218,290.50, 327,490.25 and 76,137.82 is: 114,225.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,290.50 : 327,490.25 = 76,137.82 : x
  2. Step 2: Convert to fraction form
    218,290.50/327,490.25 = 76,137.82/x
  3. Step 3: Cross multiply
    218,290.50x = 327,490.25 × 76,137.82
  4. Step 4: Simplify right side
    218,290.50x = 24,934,393,325.57
  5. Step 5: Solve for x
    x = 24,934,393,325.57/218,290.50
  6. Step 6: Final answer
    x = 114,225.74

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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.