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Finding the Fourth Proportional to 242,791.48, 335,061.92 and 135,380.64

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Solution

The fourth proportional to 242,791.48, 335,061.92 and 135,380.64 is: 186,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,791.48 : 335,061.92 = 135,380.64 : x
  2. Step 2: Convert to fraction form
    242,791.48/335,061.92 = 135,380.64/x
  3. Step 3: Cross multiply
    242,791.48x = 335,061.92 × 135,380.64
  4. Step 4: Simplify right side
    242,791.48x = 45,360,897,169.23
  5. Step 5: Solve for x
    x = 45,360,897,169.23/242,791.48
  6. Step 6: Final answer
    x = 186,830.68

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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.