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Finding the Fourth Proportional to 205.16, 306.32 and 176.23

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Solution

The fourth proportional to 205.16, 306.32 and 176.23 is: 263.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.16 : 306.32 = 176.23 : x
  2. Step 2: Convert to fraction form
    205.16/306.32 = 176.23/x
  3. Step 3: Cross multiply
    205.16x = 306.32 × 176.23
  4. Step 4: Simplify right side
    205.16x = 53,982.77
  5. Step 5: Solve for x
    x = 53,982.77/205.16
  6. Step 6: Final answer
    x = 263.13

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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.