Home / 442,721.58-663,687.90-162,173.22

Finding the Fourth Proportional to 442,721.58, 663,687.90 and 162,173.22

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Solution

The fourth proportional to 442,721.58, 663,687.90 and 162,173.22 is: 243,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,721.58 : 663,687.90 = 162,173.22 : x
  2. Step 2: Convert to fraction form
    442,721.58/663,687.90 = 162,173.22/x
  3. Step 3: Cross multiply
    442,721.58x = 663,687.90 × 162,173.22
  4. Step 4: Simplify right side
    442,721.58x = 107,632,403,818.04
  5. Step 5: Solve for x
    x = 107,632,403,818.04/442,721.58
  6. Step 6: Final answer
    x = 243,115.33

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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.