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Finding the Fourth Proportional to 883.52, 1,325.28 and 306.39

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Solution

The fourth proportional to 883.52, 1,325.28 and 306.39 is: 459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.52 : 1,325.28 = 306.39 : x
  2. Step 2: Convert to fraction form
    883.52/1,325.28 = 306.39/x
  3. Step 3: Cross multiply
    883.52x = 1,325.28 × 306.39
  4. Step 4: Simplify right side
    883.52x = 406,051.01
  5. Step 5: Solve for x
    x = 406,051.01/883.52
  6. Step 6: Final answer
    x = 459.59

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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.