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Finding the Fourth Proportional to 661.29, 912.56 and 362.52

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Solution

The fourth proportional to 661.29, 912.56 and 362.52 is: 500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    661.29 : 912.56 = 362.52 : x
  2. Step 2: Convert to fraction form
    661.29/912.56 = 362.52/x
  3. Step 3: Cross multiply
    661.29x = 912.56 × 362.52
  4. Step 4: Simplify right side
    661.29x = 330,819.44
  5. Step 5: Solve for x
    x = 330,819.44/661.29
  6. Step 6: Final answer
    x = 500.27

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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.