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Finding the Fourth Proportional to 332.25, 497.34 and 216.45

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Solution

The fourth proportional to 332.25, 497.34 and 216.45 is: 323.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.25 : 497.34 = 216.45 : x
  2. Step 2: Convert to fraction form
    332.25/497.34 = 216.45/x
  3. Step 3: Cross multiply
    332.25x = 497.34 × 216.45
  4. Step 4: Simplify right side
    332.25x = 107,647.84
  5. Step 5: Solve for x
    x = 107,647.84/332.25
  6. Step 6: Final answer
    x = 323.99

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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.