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Finding the Fourth Proportional to 277,750.70, 416,626.05 and 90,781.10

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Solution

The fourth proportional to 277,750.70, 416,626.05 and 90,781.10 is: 136,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,750.70 : 416,626.05 = 90,781.10 : x
  2. Step 2: Convert to fraction form
    277,750.70/416,626.05 = 90,781.10/x
  3. Step 3: Cross multiply
    277,750.70x = 416,626.05 × 90,781.10
  4. Step 4: Simplify right side
    277,750.70x = 37,821,771,107.66
  5. Step 5: Solve for x
    x = 37,821,771,107.66/277,750.70
  6. Step 6: Final answer
    x = 136,171.65

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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.