Home / 220,121.10-330,181.65-141,324.30

Finding the Fourth Proportional to 220,121.10, 330,181.65 and 141,324.30

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Solution

The fourth proportional to 220,121.10, 330,181.65 and 141,324.30 is: 211,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,121.10 : 330,181.65 = 141,324.30 : x
  2. Step 2: Convert to fraction form
    220,121.10/330,181.65 = 141,324.30/x
  3. Step 3: Cross multiply
    220,121.10x = 330,181.65 × 141,324.30
  4. Step 4: Simplify right side
    220,121.10x = 46,662,690,559.10
  5. Step 5: Solve for x
    x = 46,662,690,559.10/220,121.10
  6. Step 6: Final answer
    x = 211,986.45

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Double scale
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Similar ratio
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1.5x scale

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.