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Finding the Fourth Proportional to 220,987.85, 331,646.85 and 149,741.55

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Solution

The fourth proportional to 220,987.85, 331,646.85 and 149,741.55 is: 224,724.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,987.85 : 331,646.85 = 149,741.55 : x
  2. Step 2: Convert to fraction form
    220,987.85/331,646.85 = 149,741.55/x
  3. Step 3: Cross multiply
    220,987.85x = 331,646.85 × 149,741.55
  4. Step 4: Simplify right side
    220,987.85x = 49,661,313,371.62
  5. Step 5: Solve for x
    x = 49,661,313,371.62/220,987.85
  6. Step 6: Final answer
    x = 224,724.19

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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.