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Finding the Fourth Proportional to 652.56, 978.61 and 241.61

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Solution

The fourth proportional to 652.56, 978.61 and 241.61 is: 362.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.56 : 978.61 = 241.61 : x
  2. Step 2: Convert to fraction form
    652.56/978.61 = 241.61/x
  3. Step 3: Cross multiply
    652.56x = 978.61 × 241.61
  4. Step 4: Simplify right side
    652.56x = 236,440.75
  5. Step 5: Solve for x
    x = 236,440.75/652.56
  6. Step 6: Final answer
    x = 362.33

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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.