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Finding the Fourth Proportional to 155.55, 233.19 and 59.43

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Solution

The fourth proportional to 155.55, 233.19 and 59.43 is: 89.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.55 : 233.19 = 59.43 : x
  2. Step 2: Convert to fraction form
    155.55/233.19 = 59.43/x
  3. Step 3: Cross multiply
    155.55x = 233.19 × 59.43
  4. Step 4: Simplify right side
    155.55x = 13,858.48
  5. Step 5: Solve for x
    x = 13,858.48/155.55
  6. Step 6: Final answer
    x = 89.09

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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.