Home / 287,683.20-431,509.26-88,003.62

Finding the Fourth Proportional to 287,683.20, 431,509.26 and 88,003.62

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Solution

The fourth proportional to 287,683.20, 431,509.26 and 88,003.62 is: 132,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,683.20 : 431,509.26 = 88,003.62 : x
  2. Step 2: Convert to fraction form
    287,683.20/431,509.26 = 88,003.62/x
  3. Step 3: Cross multiply
    287,683.20x = 431,509.26 × 88,003.62
  4. Step 4: Simplify right side
    287,683.20x = 37,974,376,943.52
  5. Step 5: Solve for x
    x = 37,974,376,943.52/287,683.20
  6. Step 6: Final answer
    x = 132,000.68

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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.