Home / 218,925.40-328,401.94-92,542.09

Finding the Fourth Proportional to 218,925.40, 328,401.94 and 92,542.09

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Solution

The fourth proportional to 218,925.40, 328,401.94 and 92,542.09 is: 138,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,925.40 : 328,401.94 = 92,542.09 : x
  2. Step 2: Convert to fraction form
    218,925.40/328,401.94 = 92,542.09/x
  3. Step 3: Cross multiply
    218,925.40x = 328,401.94 × 92,542.09
  4. Step 4: Simplify right side
    218,925.40x = 30,391,000,440.66
  5. Step 5: Solve for x
    x = 30,391,000,440.66/218,925.40
  6. Step 6: Final answer
    x = 138,818.98

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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.