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Finding the Fourth Proportional to 216.04, 297.78 and 166.90

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Solution

The fourth proportional to 216.04, 297.78 and 166.90 is: 230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.04 : 297.78 = 166.90 : x
  2. Step 2: Convert to fraction form
    216.04/297.78 = 166.90/x
  3. Step 3: Cross multiply
    216.04x = 297.78 × 166.90
  4. Step 4: Simplify right side
    216.04x = 49,699.48
  5. Step 5: Solve for x
    x = 49,699.48/216.04
  6. Step 6: Final answer
    x = 230.05

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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.