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Finding the Fourth Proportional to 277,221.60, 415,832.40 and 220,140.90

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Solution

The fourth proportional to 277,221.60, 415,832.40 and 220,140.90 is: 330,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,221.60 : 415,832.40 = 220,140.90 : x
  2. Step 2: Convert to fraction form
    277,221.60/415,832.40 = 220,140.90/x
  3. Step 3: Cross multiply
    277,221.60x = 415,832.40 × 220,140.90
  4. Step 4: Simplify right side
    277,221.60x = 91,541,718,785.16
  5. Step 5: Solve for x
    x = 91,541,718,785.16/277,221.60
  6. Step 6: Final answer
    x = 330,211.35

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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.