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Finding the Fourth Proportional to 365.53, 548.47 and 268.13

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Solution

The fourth proportional to 365.53, 548.47 and 268.13 is: 402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.53 : 548.47 = 268.13 : x
  2. Step 2: Convert to fraction form
    365.53/548.47 = 268.13/x
  3. Step 3: Cross multiply
    365.53x = 548.47 × 268.13
  4. Step 4: Simplify right side
    365.53x = 147,061.26
  5. Step 5: Solve for x
    x = 147,061.26/365.53
  6. Step 6: Final answer
    x = 402.32

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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.