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Finding the Fourth Proportional to 155.98, 233.60 and 101.70

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Solution

The fourth proportional to 155.98, 233.60 and 101.70 is: 152.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.98 : 233.60 = 101.70 : x
  2. Step 2: Convert to fraction form
    155.98/233.60 = 101.70/x
  3. Step 3: Cross multiply
    155.98x = 233.60 × 101.70
  4. Step 4: Simplify right side
    155.98x = 23,757.12
  5. Step 5: Solve for x
    x = 23,757.12/155.98
  6. Step 6: Final answer
    x = 152.31

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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.