Home / 309,870.24-464,942.88-132,489.60

Finding the Fourth Proportional to 309,870.24, 464,942.88 and 132,489.60

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Solution

The fourth proportional to 309,870.24, 464,942.88 and 132,489.60 is: 198,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,870.24 : 464,942.88 = 132,489.60 : x
  2. Step 2: Convert to fraction form
    309,870.24/464,942.88 = 132,489.60/x
  3. Step 3: Cross multiply
    309,870.24x = 464,942.88 × 132,489.60
  4. Step 4: Simplify right side
    309,870.24x = 61,600,096,194.05
  5. Step 5: Solve for x
    x = 61,600,096,194.05/309,870.24
  6. Step 6: Final answer
    x = 198,793.20

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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.