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Finding the Fourth Proportional to 182.79, 251.91 and 153.23

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Solution

The fourth proportional to 182.79, 251.91 and 153.23 is: 211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.79 : 251.91 = 153.23 : x
  2. Step 2: Convert to fraction form
    182.79/251.91 = 153.23/x
  3. Step 3: Cross multiply
    182.79x = 251.91 × 153.23
  4. Step 4: Simplify right side
    182.79x = 38,598.91
  5. Step 5: Solve for x
    x = 38,598.91/182.79
  6. Step 6: Final answer
    x = 211.17

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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.