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Finding the Fourth Proportional to 216.04, 322.69 and 155.14

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Solution

The fourth proportional to 216.04, 322.69 and 155.14 is: 231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.04 : 322.69 = 155.14 : x
  2. Step 2: Convert to fraction form
    216.04/322.69 = 155.14/x
  3. Step 3: Cross multiply
    216.04x = 322.69 × 155.14
  4. Step 4: Simplify right side
    216.04x = 50,060.93
  5. Step 5: Solve for x
    x = 50,060.93/216.04
  6. Step 6: Final answer
    x = 231.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.