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Finding the Fourth Proportional to 885.60, 1,327.68 and 337.44

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Solution

The fourth proportional to 885.60, 1,327.68 and 337.44 is: 505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.60 : 1,327.68 = 337.44 : x
  2. Step 2: Convert to fraction form
    885.60/1,327.68 = 337.44/x
  3. Step 3: Cross multiply
    885.60x = 1,327.68 × 337.44
  4. Step 4: Simplify right side
    885.60x = 448,012.34
  5. Step 5: Solve for x
    x = 448,012.34/885.60
  6. Step 6: Final answer
    x = 505.89

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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.