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Finding the Fourth Proportional to 268.59, 399.81 and 237.84

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Solution

The fourth proportional to 268.59, 399.81 and 237.84 is: 354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.59 : 399.81 = 237.84 : x
  2. Step 2: Convert to fraction form
    268.59/399.81 = 237.84/x
  3. Step 3: Cross multiply
    268.59x = 399.81 × 237.84
  4. Step 4: Simplify right side
    268.59x = 95,089.53
  5. Step 5: Solve for x
    x = 95,089.53/268.59
  6. Step 6: Final answer
    x = 354.03

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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.