Home / 287,734.52-431,601.78-121,523.96

Finding the Fourth Proportional to 287,734.52, 431,601.78 and 121,523.96

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Solution

The fourth proportional to 287,734.52, 431,601.78 and 121,523.96 is: 182,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,734.52 : 431,601.78 = 121,523.96 : x
  2. Step 2: Convert to fraction form
    287,734.52/431,601.78 = 121,523.96/x
  3. Step 3: Cross multiply
    287,734.52x = 431,601.78 × 121,523.96
  4. Step 4: Simplify right side
    287,734.52x = 52,449,957,448.65
  5. Step 5: Solve for x
    x = 52,449,957,448.65/287,734.52
  6. Step 6: Final answer
    x = 182,285.94

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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.