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Finding the Fourth Proportional to 366.55, 549.86 and 119.77

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Solution

The fourth proportional to 366.55, 549.86 and 119.77 is: 179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.55 : 549.86 = 119.77 : x
  2. Step 2: Convert to fraction form
    366.55/549.86 = 119.77/x
  3. Step 3: Cross multiply
    366.55x = 549.86 × 119.77
  4. Step 4: Simplify right side
    366.55x = 65,854.76
  5. Step 5: Solve for x
    x = 65,854.76/366.55
  6. Step 6: Final answer
    x = 179.66

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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.