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Finding the Fourth Proportional to 885.73, 1,328.95 and 337.97

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Solution

The fourth proportional to 885.73, 1,328.95 and 337.97 is: 507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.73 : 1,328.95 = 337.97 : x
  2. Step 2: Convert to fraction form
    885.73/1,328.95 = 337.97/x
  3. Step 3: Cross multiply
    885.73x = 1,328.95 × 337.97
  4. Step 4: Simplify right side
    885.73x = 449,145.23
  5. Step 5: Solve for x
    x = 449,145.23/885.73
  6. Step 6: Final answer
    x = 507.09

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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.