Home / 218,727.40-328,091.10-187,234.60

Finding the Fourth Proportional to 218,727.40, 328,091.10 and 187,234.60

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Solution

The fourth proportional to 218,727.40, 328,091.10 and 187,234.60 is: 280,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,727.40 : 328,091.10 = 187,234.60 : x
  2. Step 2: Convert to fraction form
    218,727.40/328,091.10 = 187,234.60/x
  3. Step 3: Cross multiply
    218,727.40x = 328,091.10 × 187,234.60
  4. Step 4: Simplify right side
    218,727.40x = 61,430,005,872.06
  5. Step 5: Solve for x
    x = 61,430,005,872.06/218,727.40
  6. Step 6: Final answer
    x = 280,851.90

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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.