Home / 287,933.16-431,982.75-88,283.01

Finding the Fourth Proportional to 287,933.16, 431,982.75 and 88,283.01

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Solution

The fourth proportional to 287,933.16, 431,982.75 and 88,283.01 is: 132,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,933.16 : 431,982.75 = 88,283.01 : x
  2. Step 2: Convert to fraction form
    287,933.16/431,982.75 = 88,283.01/x
  3. Step 3: Cross multiply
    287,933.16x = 431,982.75 × 88,283.01
  4. Step 4: Simplify right side
    287,933.16x = 38,136,737,438.08
  5. Step 5: Solve for x
    x = 38,136,737,438.08/287,933.16
  6. Step 6: Final answer
    x = 132,449.97

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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.