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Finding the Fourth Proportional to 252,380.16, 378,656.64 and 112,236.48

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Solution

The fourth proportional to 252,380.16, 378,656.64 and 112,236.48 is: 168,393.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,380.16 : 378,656.64 = 112,236.48 : x
  2. Step 2: Convert to fraction form
    252,380.16/378,656.64 = 112,236.48/x
  3. Step 3: Cross multiply
    252,380.16x = 378,656.64 × 112,236.48
  4. Step 4: Simplify right side
    252,380.16x = 42,499,088,402.23
  5. Step 5: Solve for x
    x = 42,499,088,402.23/252,380.16
  6. Step 6: Final answer
    x = 168,393.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.