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Finding the Fourth Proportional to 155.90, 233.40 and 101.54

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Solution

The fourth proportional to 155.90, 233.40 and 101.54 is: 152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.90 : 233.40 = 101.54 : x
  2. Step 2: Convert to fraction form
    155.90/233.40 = 101.54/x
  3. Step 3: Cross multiply
    155.90x = 233.40 × 101.54
  4. Step 4: Simplify right side
    155.90x = 23,699.44
  5. Step 5: Solve for x
    x = 23,699.44/155.90
  6. Step 6: Final answer
    x = 152.02

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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.