Home / 287,932.96-431,982.44-88,282.79

Finding the Fourth Proportional to 287,932.96, 431,982.44 and 88,282.79

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Solution

The fourth proportional to 287,932.96, 431,982.44 and 88,282.79 is: 132,449.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,932.96 : 431,982.44 = 88,282.79 : x
  2. Step 2: Convert to fraction form
    287,932.96/431,982.44 = 88,282.79/x
  3. Step 3: Cross multiply
    287,932.96x = 431,982.44 × 88,282.79
  4. Step 4: Simplify right side
    287,932.96x = 38,136,615,034.21
  5. Step 5: Solve for x
    x = 38,136,615,034.21/287,932.96
  6. Step 6: Final answer
    x = 132,449.64

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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.