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Finding the Fourth Proportional to 155.92, 235 and 148.12

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Solution

The fourth proportional to 155.92, 235 and 148.12 is: 223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.92 : 235 = 148.12 : x
  2. Step 2: Convert to fraction form
    155.92/235 = 148.12/x
  3. Step 3: Cross multiply
    155.92x = 235 × 148.12
  4. Step 4: Simplify right side
    155.92x = 34,808.20
  5. Step 5: Solve for x
    x = 34,808.20/155.92
  6. Step 6: Final answer
    x = 223.24

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.