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Finding the Fourth Proportional to 156.74, 233.84 and 152.72

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Solution

The fourth proportional to 156.74, 233.84 and 152.72 is: 227.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.74 : 233.84 = 152.72 : x
  2. Step 2: Convert to fraction form
    156.74/233.84 = 152.72/x
  3. Step 3: Cross multiply
    156.74x = 233.84 × 152.72
  4. Step 4: Simplify right side
    156.74x = 35,710.11
  5. Step 5: Solve for x
    x = 35,710.11/156.74
  6. Step 6: Final answer
    x = 227.83

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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.