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Finding the Fourth Proportional to 155.60, 233.26 and 83.39

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Solution

The fourth proportional to 155.60, 233.26 and 83.39 is: 125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.60 : 233.26 = 83.39 : x
  2. Step 2: Convert to fraction form
    155.60/233.26 = 83.39/x
  3. Step 3: Cross multiply
    155.60x = 233.26 × 83.39
  4. Step 4: Simplify right side
    155.60x = 19,451.55
  5. Step 5: Solve for x
    x = 19,451.55/155.60
  6. Step 6: Final answer
    x = 125.01

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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.