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Finding the Fourth Proportional to 320.01, 441.56 and 187.24

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Solution

The fourth proportional to 320.01, 441.56 and 187.24 is: 258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320.01 : 441.56 = 187.24 : x
  2. Step 2: Convert to fraction form
    320.01/441.56 = 187.24/x
  3. Step 3: Cross multiply
    320.01x = 441.56 × 187.24
  4. Step 4: Simplify right side
    320.01x = 82,677.69
  5. Step 5: Solve for x
    x = 82,677.69/320.01
  6. Step 6: Final answer
    x = 258.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.