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Finding the Fourth Proportional to 232,287.12, 320,580.72 and 136,791.78

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Solution

The fourth proportional to 232,287.12, 320,580.72 and 136,791.78 is: 188,787.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,287.12 : 320,580.72 = 136,791.78 : x
  2. Step 2: Convert to fraction form
    232,287.12/320,580.72 = 136,791.78/x
  3. Step 3: Cross multiply
    232,287.12x = 320,580.72 × 136,791.78
  4. Step 4: Simplify right side
    232,287.12x = 43,852,807,322.48
  5. Step 5: Solve for x
    x = 43,852,807,322.48/232,287.12
  6. Step 6: Final answer
    x = 188,787.08

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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.