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Finding the Fourth Proportional to 215.04, 322.25 and 176.79

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Solution

The fourth proportional to 215.04, 322.25 and 176.79 is: 264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.04 : 322.25 = 176.79 : x
  2. Step 2: Convert to fraction form
    215.04/322.25 = 176.79/x
  3. Step 3: Cross multiply
    215.04x = 322.25 × 176.79
  4. Step 4: Simplify right side
    215.04x = 56,969.69
  5. Step 5: Solve for x
    x = 56,969.69/215.04
  6. Step 6: Final answer
    x = 264.93

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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.