Home / 206,631.40-309,975.90-88,301.80

Finding the Fourth Proportional to 206,631.40, 309,975.90 and 88,301.80

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Solution

The fourth proportional to 206,631.40, 309,975.90 and 88,301.80 is: 132,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,631.40 : 309,975.90 = 88,301.80 : x
  2. Step 2: Convert to fraction form
    206,631.40/309,975.90 = 88,301.80/x
  3. Step 3: Cross multiply
    206,631.40x = 309,975.90 × 88,301.80
  4. Step 4: Simplify right side
    206,631.40x = 27,371,429,926.62
  5. Step 5: Solve for x
    x = 27,371,429,926.62/206,631.40
  6. Step 6: Final answer
    x = 132,465.01

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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.