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Finding the Fourth Proportional to 277,500.80, 416,251.20 and 90,512.30

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Solution

The fourth proportional to 277,500.80, 416,251.20 and 90,512.30 is: 135,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,500.80 : 416,251.20 = 90,512.30 : x
  2. Step 2: Convert to fraction form
    277,500.80/416,251.20 = 90,512.30/x
  3. Step 3: Cross multiply
    277,500.80x = 416,251.20 × 90,512.30
  4. Step 4: Simplify right side
    277,500.80x = 37,675,853,489.76
  5. Step 5: Solve for x
    x = 37,675,853,489.76/277,500.80
  6. Step 6: Final answer
    x = 135,768.45

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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.