Home / 287,815.48-431,162.19-175,216.43

Finding the Fourth Proportional to 287,815.48, 431,162.19 and 175,216.43

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Solution

The fourth proportional to 287,815.48, 431,162.19 and 175,216.43 is: 262,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,815.48 : 431,162.19 = 175,216.43 : x
  2. Step 2: Convert to fraction form
    287,815.48/431,162.19 = 175,216.43/x
  3. Step 3: Cross multiply
    287,815.48x = 431,162.19 × 175,216.43
  4. Step 4: Simplify right side
    287,815.48x = 75,546,700,760.69
  5. Step 5: Solve for x
    x = 75,546,700,760.69/287,815.48
  6. Step 6: Final answer
    x = 262,483.11

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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.