Home / 277,748.31-416,644.07-90,778.71

Finding the Fourth Proportional to 277,748.31, 416,644.07 and 90,778.71

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Solution

The fourth proportional to 277,748.31, 416,644.07 and 90,778.71 is: 136,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,748.31 : 416,644.07 = 90,778.71 : x
  2. Step 2: Convert to fraction form
    277,748.31/416,644.07 = 90,778.71/x
  3. Step 3: Cross multiply
    277,748.31x = 416,644.07 × 90,778.71
  4. Step 4: Simplify right side
    277,748.31x = 37,822,410,749.86
  5. Step 5: Solve for x
    x = 37,822,410,749.86/277,748.31
  6. Step 6: Final answer
    x = 136,175.12

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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.