Home / 277,747.20-416,620.80-90,777.60

Finding the Fourth Proportional to 277,747.20, 416,620.80 and 90,777.60

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Solution

The fourth proportional to 277,747.20, 416,620.80 and 90,777.60 is: 136,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,747.20 : 416,620.80 = 90,777.60 : x
  2. Step 2: Convert to fraction form
    277,747.20/416,620.80 = 90,777.60/x
  3. Step 3: Cross multiply
    277,747.20x = 416,620.80 × 90,777.60
  4. Step 4: Simplify right side
    277,747.20x = 37,819,836,334.08
  5. Step 5: Solve for x
    x = 37,819,836,334.08/277,747.20
  6. Step 6: Final answer
    x = 136,166.40

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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.