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Finding the Fourth Proportional to 242,917.92, 335,211.48 and 135,494.91

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Solution

The fourth proportional to 242,917.92, 335,211.48 and 135,494.91 is: 186,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,917.92 : 335,211.48 = 135,494.91 : x
  2. Step 2: Convert to fraction form
    242,917.92/335,211.48 = 135,494.91/x
  3. Step 3: Cross multiply
    242,917.92x = 335,211.48 × 135,494.91
  4. Step 4: Simplify right side
    242,917.92x = 45,419,449,313.57
  5. Step 5: Solve for x
    x = 45,419,449,313.57/242,917.92
  6. Step 6: Final answer
    x = 186,974.47

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1.5x scale

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.