Home / 252,592.20-378,885-72,682.32

Finding the Fourth Proportional to 252,592.20, 378,885 and 72,682.32

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Solution

The fourth proportional to 252,592.20, 378,885 and 72,682.32 is: 109,022.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,592.20 : 378,885 = 72,682.32 : x
  2. Step 2: Convert to fraction form
    252,592.20/378,885 = 72,682.32/x
  3. Step 3: Cross multiply
    252,592.20x = 378,885 × 72,682.32
  4. Step 4: Simplify right side
    252,592.20x = 27,538,240,813.20
  5. Step 5: Solve for x
    x = 27,538,240,813.20/252,592.20
  6. Step 6: Final answer
    x = 109,022.53

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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.