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Finding the Fourth Proportional to 442,622.72, 663,933.72 and 162,161.84

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Solution

The fourth proportional to 442,622.72, 663,933.72 and 162,161.84 is: 243,242.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,622.72 : 663,933.72 = 162,161.84 : x
  2. Step 2: Convert to fraction form
    442,622.72/663,933.72 = 162,161.84/x
  3. Step 3: Cross multiply
    442,622.72x = 663,933.72 × 162,161.84
  4. Step 4: Simplify right side
    442,622.72x = 107,664,713,673.25
  5. Step 5: Solve for x
    x = 107,664,713,673.25/442,622.72
  6. Step 6: Final answer
    x = 243,242.63

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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.