Home / 277,754.20-416,631.30-90,784.60

Finding the Fourth Proportional to 277,754.20, 416,631.30 and 90,784.60

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Solution

The fourth proportional to 277,754.20, 416,631.30 and 90,784.60 is: 136,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,754.20 : 416,631.30 = 90,784.60 : x
  2. Step 2: Convert to fraction form
    277,754.20/416,631.30 = 90,784.60/x
  3. Step 3: Cross multiply
    277,754.20x = 416,631.30 × 90,784.60
  4. Step 4: Simplify right side
    277,754.20x = 37,823,705,917.98
  5. Step 5: Solve for x
    x = 37,823,705,917.98/277,754.20
  6. Step 6: Final answer
    x = 136,176.90

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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.