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Finding the Fourth Proportional to 267.65, 399.53 and 235.25

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Solution

The fourth proportional to 267.65, 399.53 and 235.25 is: 351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.65 : 399.53 = 235.25 : x
  2. Step 2: Convert to fraction form
    267.65/399.53 = 235.25/x
  3. Step 3: Cross multiply
    267.65x = 399.53 × 235.25
  4. Step 4: Simplify right side
    267.65x = 93,989.43
  5. Step 5: Solve for x
    x = 93,989.43/267.65
  6. Step 6: Final answer
    x = 351.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.