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Finding the Fourth Proportional to 442,679.58, 663,624.90 and 162,131.22

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Solution

The fourth proportional to 442,679.58, 663,624.90 and 162,131.22 is: 243,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,679.58 : 663,624.90 = 162,131.22 : x
  2. Step 2: Convert to fraction form
    442,679.58/663,624.90 = 162,131.22/x
  3. Step 3: Cross multiply
    442,679.58x = 663,624.90 × 162,131.22
  4. Step 4: Simplify right side
    442,679.58x = 107,594,314,659.38
  5. Step 5: Solve for x
    x = 107,594,314,659.38/442,679.58
  6. Step 6: Final answer
    x = 243,052.36

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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.