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Finding the Fourth Proportional to 248,077.70, 372,116.55 and 81,844.10

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Solution

The fourth proportional to 248,077.70, 372,116.55 and 81,844.10 is: 122,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,077.70 : 372,116.55 = 81,844.10 : x
  2. Step 2: Convert to fraction form
    248,077.70/372,116.55 = 81,844.10/x
  3. Step 3: Cross multiply
    248,077.70x = 372,116.55 × 81,844.10
  4. Step 4: Simplify right side
    248,077.70x = 30,455,544,129.86
  5. Step 5: Solve for x
    x = 30,455,544,129.86/248,077.70
  6. Step 6: Final answer
    x = 122,766.15

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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.