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Finding the Fourth Proportional to 332.05, 457.97 and 215.53

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Solution

The fourth proportional to 332.05, 457.97 and 215.53 is: 297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.05 : 457.97 = 215.53 : x
  2. Step 2: Convert to fraction form
    332.05/457.97 = 215.53/x
  3. Step 3: Cross multiply
    332.05x = 457.97 × 215.53
  4. Step 4: Simplify right side
    332.05x = 98,705.20
  5. Step 5: Solve for x
    x = 98,705.20/332.05
  6. Step 6: Final answer
    x = 297.26

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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.