Home / 331,971.40-498,021.90-132,257.80

Finding the Fourth Proportional to 331,971.40, 498,021.90 and 132,257.80

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Solution

The fourth proportional to 331,971.40, 498,021.90 and 132,257.80 is: 198,412.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,971.40 : 498,021.90 = 132,257.80 : x
  2. Step 2: Convert to fraction form
    331,971.40/498,021.90 = 132,257.80/x
  3. Step 3: Cross multiply
    331,971.40x = 498,021.90 × 132,257.80
  4. Step 4: Simplify right side
    331,971.40x = 65,867,280,845.82
  5. Step 5: Solve for x
    x = 65,867,280,845.82/331,971.40
  6. Step 6: Final answer
    x = 198,412.52

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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.