Home / 252,009.20-347,791.56-138,832.40

Finding the Fourth Proportional to 252,009.20, 347,791.56 and 138,832.40

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Solution

The fourth proportional to 252,009.20, 347,791.56 and 138,832.40 is: 191,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,009.20 : 347,791.56 = 138,832.40 : x
  2. Step 2: Convert to fraction form
    252,009.20/347,791.56 = 138,832.40/x
  3. Step 3: Cross multiply
    252,009.20x = 347,791.56 × 138,832.40
  4. Step 4: Simplify right side
    252,009.20x = 48,284,736,974.54
  5. Step 5: Solve for x
    x = 48,284,736,974.54/252,009.20
  6. Step 6: Final answer
    x = 191,599.10

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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.