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Finding the Fourth Proportional to 262.77, 392.49 and 251.02

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Solution

The fourth proportional to 262.77, 392.49 and 251.02 is: 374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.77 : 392.49 = 251.02 : x
  2. Step 2: Convert to fraction form
    262.77/392.49 = 251.02/x
  3. Step 3: Cross multiply
    262.77x = 392.49 × 251.02
  4. Step 4: Simplify right side
    262.77x = 98,522.84
  5. Step 5: Solve for x
    x = 98,522.84/262.77
  6. Step 6: Final answer
    x = 374.94

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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.