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Finding the Fourth Proportional to 277,620.20, 416,327.90 and 90,637.80

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Solution

The fourth proportional to 277,620.20, 416,327.90 and 90,637.80 is: 135,923.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,620.20 : 416,327.90 = 90,637.80 : x
  2. Step 2: Convert to fraction form
    277,620.20/416,327.90 = 90,637.80/x
  3. Step 3: Cross multiply
    277,620.20x = 416,327.90 × 90,637.80
  4. Step 4: Simplify right side
    277,620.20x = 37,735,044,934.62
  5. Step 5: Solve for x
    x = 37,735,044,934.62/277,620.20
  6. Step 6: Final answer
    x = 135,923.27

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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.