Home / 285,832.20-428,748.30-98,862.60

Finding the Fourth Proportional to 285,832.20, 428,748.30 and 98,862.60

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Solution

The fourth proportional to 285,832.20, 428,748.30 and 98,862.60 is: 148,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,832.20 : 428,748.30 = 98,862.60 : x
  2. Step 2: Convert to fraction form
    285,832.20/428,748.30 = 98,862.60/x
  3. Step 3: Cross multiply
    285,832.20x = 428,748.30 × 98,862.60
  4. Step 4: Simplify right side
    285,832.20x = 42,387,171,683.58
  5. Step 5: Solve for x
    x = 42,387,171,683.58/285,832.20
  6. Step 6: Final answer
    x = 148,293.90

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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.