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Finding the Fourth Proportional to 243,249.12, 335,914.74 and 229,995.90

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Solution

The fourth proportional to 243,249.12, 335,914.74 and 229,995.90 is: 317,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,249.12 : 335,914.74 = 229,995.90 : x
  2. Step 2: Convert to fraction form
    243,249.12/335,914.74 = 229,995.90/x
  3. Step 3: Cross multiply
    243,249.12x = 335,914.74 × 229,995.90
  4. Step 4: Simplify right side
    243,249.12x = 77,259,012,949.57
  5. Step 5: Solve for x
    x = 77,259,012,949.57/243,249.12
  6. Step 6: Final answer
    x = 317,612.71

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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.