Home / 278,790.24-384,749.57-157,932.52

Finding the Fourth Proportional to 278,790.24, 384,749.57 and 157,932.52

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Solution

The fourth proportional to 278,790.24, 384,749.57 and 157,932.52 is: 217,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,790.24 : 384,749.57 = 157,932.52 : x
  2. Step 2: Convert to fraction form
    278,790.24/384,749.57 = 157,932.52/x
  3. Step 3: Cross multiply
    278,790.24x = 384,749.57 × 157,932.52
  4. Step 4: Simplify right side
    278,790.24x = 60,764,469,159.02
  5. Step 5: Solve for x
    x = 60,764,469,159.02/278,790.24
  6. Step 6: Final answer
    x = 217,957.66

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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.