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Finding the Fourth Proportional to 264.95, 365.19 and 212.40

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Solution

The fourth proportional to 264.95, 365.19 and 212.40 is: 292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.95 : 365.19 = 212.40 : x
  2. Step 2: Convert to fraction form
    264.95/365.19 = 212.40/x
  3. Step 3: Cross multiply
    264.95x = 365.19 × 212.40
  4. Step 4: Simplify right side
    264.95x = 77,566.36
  5. Step 5: Solve for x
    x = 77,566.36/264.95
  6. Step 6: Final answer
    x = 292.76

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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.