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Finding the Fourth Proportional to 252,036.64, 347,811.44 and 138,859.12

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Solution

The fourth proportional to 252,036.64, 347,811.44 and 138,859.12 is: 191,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,036.64 : 347,811.44 = 138,859.12 : x
  2. Step 2: Convert to fraction form
    252,036.64/347,811.44 = 138,859.12/x
  3. Step 3: Cross multiply
    252,036.64x = 347,811.44 × 138,859.12
  4. Step 4: Simplify right side
    252,036.64x = 48,296,790,484.33
  5. Step 5: Solve for x
    x = 48,296,790,484.33/252,036.64
  6. Step 6: Final answer
    x = 191,626.07

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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.