Home / 206,921.40-310,338.90-88,596.60

Finding the Fourth Proportional to 206,921.40, 310,338.90 and 88,596.60

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Solution

The fourth proportional to 206,921.40, 310,338.90 and 88,596.60 is: 132,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,921.40 : 310,338.90 = 88,596.60 : x
  2. Step 2: Convert to fraction form
    206,921.40/310,338.90 = 88,596.60/x
  3. Step 3: Cross multiply
    206,921.40x = 310,338.90 × 88,596.60
  4. Step 4: Simplify right side
    206,921.40x = 27,494,971,387.74
  5. Step 5: Solve for x
    x = 27,494,971,387.74/206,921.40
  6. Step 6: Final answer
    x = 132,876.40

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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.