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Finding the Fourth Proportional to 211,481.60, 291,691.60 and 179,600

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Solution

The fourth proportional to 211,481.60, 291,691.60 and 179,600 is: 247,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,481.60 : 291,691.60 = 179,600 : x
  2. Step 2: Convert to fraction form
    211,481.60/291,691.60 = 179,600/x
  3. Step 3: Cross multiply
    211,481.60x = 291,691.60 × 179,600
  4. Step 4: Simplify right side
    211,481.60x = 52,387,811,360.00
  5. Step 5: Solve for x
    x = 52,387,811,360.00/211,481.60
  6. Step 6: Final answer
    x = 247,718.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.