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Finding the Fourth Proportional to 264.18, 395.55 and 177.66

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Solution

The fourth proportional to 264.18, 395.55 and 177.66 is: 266.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.18 : 395.55 = 177.66 : x
  2. Step 2: Convert to fraction form
    264.18/395.55 = 177.66/x
  3. Step 3: Cross multiply
    264.18x = 395.55 × 177.66
  4. Step 4: Simplify right side
    264.18x = 70,273.41
  5. Step 5: Solve for x
    x = 70,273.41/264.18
  6. Step 6: Final answer
    x = 266.01

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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.