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Finding the Fourth Proportional to 242,768.57, 335,020.68 and 135,336.29

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Solution

The fourth proportional to 242,768.57, 335,020.68 and 135,336.29 is: 186,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,768.57 : 335,020.68 = 135,336.29 : x
  2. Step 2: Convert to fraction form
    242,768.57/335,020.68 = 135,336.29/x
  3. Step 3: Cross multiply
    242,768.57x = 335,020.68 × 135,336.29
  4. Step 4: Simplify right side
    242,768.57x = 45,340,454,229.37
  5. Step 5: Solve for x
    x = 45,340,454,229.37/242,768.57
  6. Step 6: Final answer
    x = 186,764.11

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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.