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Finding the Fourth Proportional to 233.98, 322.18 and 212.01

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Solution

The fourth proportional to 233.98, 322.18 and 212.01 is: 291.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.98 : 322.18 = 212.01 : x
  2. Step 2: Convert to fraction form
    233.98/322.18 = 212.01/x
  3. Step 3: Cross multiply
    233.98x = 322.18 × 212.01
  4. Step 4: Simplify right side
    233.98x = 68,305.38
  5. Step 5: Solve for x
    x = 68,305.38/233.98
  6. Step 6: Final answer
    x = 291.93

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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.