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Finding the Fourth Proportional to 156.13, 232.80 and 155.82

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Solution

The fourth proportional to 156.13, 232.80 and 155.82 is: 232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.13 : 232.80 = 155.82 : x
  2. Step 2: Convert to fraction form
    156.13/232.80 = 155.82/x
  3. Step 3: Cross multiply
    156.13x = 232.80 × 155.82
  4. Step 4: Simplify right side
    156.13x = 36,275.62
  5. Step 5: Solve for x
    x = 36,275.62/156.13
  6. Step 6: Final answer
    x = 232.35

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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.