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Finding the Fourth Proportional to 155.12, 232.44 and 98

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Solution

The fourth proportional to 155.12, 232.44 and 98 is: 146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.12 : 232.44 = 98 : x
  2. Step 2: Convert to fraction form
    155.12/232.44 = 98/x
  3. Step 3: Cross multiply
    155.12x = 232.44 × 98
  4. Step 4: Simplify right side
    155.12x = 22,779.12
  5. Step 5: Solve for x
    x = 22,779.12/155.12
  6. Step 6: Final answer
    x = 146.85

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