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Finding the Fourth Proportional to 652.73, 978.39 and 323.33

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Solution

The fourth proportional to 652.73, 978.39 and 323.33 is: 484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.73 : 978.39 = 323.33 : x
  2. Step 2: Convert to fraction form
    652.73/978.39 = 323.33/x
  3. Step 3: Cross multiply
    652.73x = 978.39 × 323.33
  4. Step 4: Simplify right side
    652.73x = 316,337.95
  5. Step 5: Solve for x
    x = 316,337.95/652.73
  6. Step 6: Final answer
    x = 484.64

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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.