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Finding the Fourth Proportional to 155.56, 234.48 and 146.02

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Solution

The fourth proportional to 155.56, 234.48 and 146.02 is: 220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.56 : 234.48 = 146.02 : x
  2. Step 2: Convert to fraction form
    155.56/234.48 = 146.02/x
  3. Step 3: Cross multiply
    155.56x = 234.48 × 146.02
  4. Step 4: Simplify right side
    155.56x = 34,238.77
  5. Step 5: Solve for x
    x = 34,238.77/155.56
  6. Step 6: Final answer
    x = 220.10

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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.