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Finding the Fourth Proportional to 277.63, 415.45 and 262.01

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Solution

The fourth proportional to 277.63, 415.45 and 262.01 is: 392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.63 : 415.45 = 262.01 : x
  2. Step 2: Convert to fraction form
    277.63/415.45 = 262.01/x
  3. Step 3: Cross multiply
    277.63x = 415.45 × 262.01
  4. Step 4: Simplify right side
    277.63x = 108,850.74
  5. Step 5: Solve for x
    x = 108,850.74/277.63
  6. Step 6: Final answer
    x = 392.08

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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.