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Finding the Fourth Proportional to 184.20, 274.72 and 156.96

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Solution

The fourth proportional to 184.20, 274.72 and 156.96 is: 234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.20 : 274.72 = 156.96 : x
  2. Step 2: Convert to fraction form
    184.20/274.72 = 156.96/x
  3. Step 3: Cross multiply
    184.20x = 274.72 × 156.96
  4. Step 4: Simplify right side
    184.20x = 43,117.89
  5. Step 5: Solve for x
    x = 43,117.89/184.20
  6. Step 6: Final answer
    x = 234.08

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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.