Home / 420,233.90-630,356.42-132,036.18

Finding the Fourth Proportional to 420,233.90, 630,356.42 and 132,036.18

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Solution

The fourth proportional to 420,233.90, 630,356.42 and 132,036.18 is: 198,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,233.90 : 630,356.42 = 132,036.18 : x
  2. Step 2: Convert to fraction form
    420,233.90/630,356.42 = 132,036.18/x
  3. Step 3: Cross multiply
    420,233.90x = 630,356.42 × 132,036.18
  4. Step 4: Simplify right side
    420,233.90x = 83,229,853,735.28
  5. Step 5: Solve for x
    x = 83,229,853,735.28/420,233.90
  6. Step 6: Final answer
    x = 198,056.02

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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.