Home / 287,933.04-431,982.56-88,282.88

Finding the Fourth Proportional to 287,933.04, 431,982.56 and 88,282.88

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Solution

The fourth proportional to 287,933.04, 431,982.56 and 88,282.88 is: 132,449.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,933.04 : 431,982.56 = 88,282.88 : x
  2. Step 2: Convert to fraction form
    287,933.04/431,982.56 = 88,282.88/x
  3. Step 3: Cross multiply
    287,933.04x = 431,982.56 × 88,282.88
  4. Step 4: Simplify right side
    287,933.04x = 38,136,664,506.57
  5. Step 5: Solve for x
    x = 38,136,664,506.57/287,933.04
  6. Step 6: Final answer
    x = 132,449.77

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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.