Home / 321,860.12-482,784.50-132,407.60

Finding the Fourth Proportional to 321,860.12, 482,784.50 and 132,407.60

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Solution

The fourth proportional to 321,860.12, 482,784.50 and 132,407.60 is: 198,609.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,860.12 : 482,784.50 = 132,407.60 : x
  2. Step 2: Convert to fraction form
    321,860.12/482,784.50 = 132,407.60/x
  3. Step 3: Cross multiply
    321,860.12x = 482,784.50 × 132,407.60
  4. Step 4: Simplify right side
    321,860.12x = 63,924,336,962.20
  5. Step 5: Solve for x
    x = 63,924,336,962.20/321,860.12
  6. Step 6: Final answer
    x = 198,609.06

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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.