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Finding the Fourth Proportional to 277,812.90, 416,719.35 and 90,843.30

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Solution

The fourth proportional to 277,812.90, 416,719.35 and 90,843.30 is: 136,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,812.90 : 416,719.35 = 90,843.30 : x
  2. Step 2: Convert to fraction form
    277,812.90/416,719.35 = 90,843.30/x
  3. Step 3: Cross multiply
    277,812.90x = 416,719.35 × 90,843.30
  4. Step 4: Simplify right side
    277,812.90x = 37,856,160,927.86
  5. Step 5: Solve for x
    x = 37,856,160,927.86/277,812.90
  6. Step 6: Final answer
    x = 136,264.95

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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.