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Finding the Fourth Proportional to 264.87, 397.72 and 235.63

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Solution

The fourth proportional to 264.87, 397.72 and 235.63 is: 353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.87 : 397.72 = 235.63 : x
  2. Step 2: Convert to fraction form
    264.87/397.72 = 235.63/x
  3. Step 3: Cross multiply
    264.87x = 397.72 × 235.63
  4. Step 4: Simplify right side
    264.87x = 93,717.01
  5. Step 5: Solve for x
    x = 93,717.01/264.87
  6. Step 6: Final answer
    x = 353.82

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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.