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Finding the Fourth Proportional to 887.11, 1,330.03 and 338.83

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Solution

The fourth proportional to 887.11, 1,330.03 and 338.83 is: 508.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.11 : 1,330.03 = 338.83 : x
  2. Step 2: Convert to fraction form
    887.11/1,330.03 = 338.83/x
  3. Step 3: Cross multiply
    887.11x = 1,330.03 × 338.83
  4. Step 4: Simplify right side
    887.11x = 450,654.06
  5. Step 5: Solve for x
    x = 450,654.06/887.11
  6. Step 6: Final answer
    x = 508.00

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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.