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Finding the Fourth Proportional to 377.64, 564.39 and 275.13

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Solution

The fourth proportional to 377.64, 564.39 and 275.13 is: 411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.64 : 564.39 = 275.13 : x
  2. Step 2: Convert to fraction form
    377.64/564.39 = 275.13/x
  3. Step 3: Cross multiply
    377.64x = 564.39 × 275.13
  4. Step 4: Simplify right side
    377.64x = 155,280.62
  5. Step 5: Solve for x
    x = 155,280.62/377.64
  6. Step 6: Final answer
    x = 411.19

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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.