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Finding the Fourth Proportional to 264.38, 364.85 and 147.98

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Solution

The fourth proportional to 264.38, 364.85 and 147.98 is: 204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.38 : 364.85 = 147.98 : x
  2. Step 2: Convert to fraction form
    264.38/364.85 = 147.98/x
  3. Step 3: Cross multiply
    264.38x = 364.85 × 147.98
  4. Step 4: Simplify right side
    264.38x = 53,990.50
  5. Step 5: Solve for x
    x = 53,990.50/264.38
  6. Step 6: Final answer
    x = 204.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.