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Finding the Fourth Proportional to 377.02, 564.62 and 261.14

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Solution

The fourth proportional to 377.02, 564.62 and 261.14 is: 391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.02 : 564.62 = 261.14 : x
  2. Step 2: Convert to fraction form
    377.02/564.62 = 261.14/x
  3. Step 3: Cross multiply
    377.02x = 564.62 × 261.14
  4. Step 4: Simplify right side
    377.02x = 147,443.91
  5. Step 5: Solve for x
    x = 147,443.91/377.02
  6. Step 6: Final answer
    x = 391.08

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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.