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Finding the Fourth Proportional to 182.79, 272.70 and 156.81

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Solution

The fourth proportional to 182.79, 272.70 and 156.81 is: 233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.79 : 272.70 = 156.81 : x
  2. Step 2: Convert to fraction form
    182.79/272.70 = 156.81/x
  3. Step 3: Cross multiply
    182.79x = 272.70 × 156.81
  4. Step 4: Simplify right side
    182.79x = 42,762.09
  5. Step 5: Solve for x
    x = 42,762.09/182.79
  6. Step 6: Final answer
    x = 233.94

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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.