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Finding the Fourth Proportional to 155.82, 233.66 and 102

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Solution

The fourth proportional to 155.82, 233.66 and 102 is: 152.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.82 : 233.66 = 102 : x
  2. Step 2: Convert to fraction form
    155.82/233.66 = 102/x
  3. Step 3: Cross multiply
    155.82x = 233.66 × 102
  4. Step 4: Simplify right side
    155.82x = 23,833.32
  5. Step 5: Solve for x
    x = 23,833.32/155.82
  6. Step 6: Final answer
    x = 152.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.