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Finding the Fourth Proportional to 442,181.60, 663,531.60 and 161,727.20

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Solution

The fourth proportional to 442,181.60, 663,531.60 and 161,727.20 is: 242,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,181.60 : 663,531.60 = 161,727.20 : x
  2. Step 2: Convert to fraction form
    442,181.60/663,531.60 = 161,727.20/x
  3. Step 3: Cross multiply
    442,181.60x = 663,531.60 × 161,727.20
  4. Step 4: Simplify right side
    442,181.60x = 107,311,107,779.52
  5. Step 5: Solve for x
    x = 107,311,107,779.52/442,181.60
  6. Step 6: Final answer
    x = 242,685.60

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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.