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Finding the Fourth Proportional to 277,272.60, 415,908.90 and 220,191.90

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Solution

The fourth proportional to 277,272.60, 415,908.90 and 220,191.90 is: 330,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,272.60 : 415,908.90 = 220,191.90 : x
  2. Step 2: Convert to fraction form
    277,272.60/415,908.90 = 220,191.90/x
  3. Step 3: Cross multiply
    277,272.60x = 415,908.90 × 220,191.90
  4. Step 4: Simplify right side
    277,272.60x = 91,579,770,917.91
  5. Step 5: Solve for x
    x = 91,579,770,917.91/277,272.60
  6. Step 6: Final answer
    x = 330,287.85

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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.