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Finding the Fourth Proportional to 243,043.74, 364,446.54 and 85,249.26

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Solution

The fourth proportional to 243,043.74, 364,446.54 and 85,249.26 is: 127,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,043.74 : 364,446.54 = 85,249.26 : x
  2. Step 2: Convert to fraction form
    243,043.74/364,446.54 = 85,249.26/x
  3. Step 3: Cross multiply
    243,043.74x = 364,446.54 × 85,249.26
  4. Step 4: Simplify right side
    243,043.74x = 31,068,797,844.56
  5. Step 5: Solve for x
    x = 31,068,797,844.56/243,043.74
  6. Step 6: Final answer
    x = 127,832.13

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1.5x scale

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.