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Finding the Fourth Proportional to 380.09, 567.16 and 356.87

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Solution

The fourth proportional to 380.09, 567.16 and 356.87 is: 532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.09 : 567.16 = 356.87 : x
  2. Step 2: Convert to fraction form
    380.09/567.16 = 356.87/x
  3. Step 3: Cross multiply
    380.09x = 567.16 × 356.87
  4. Step 4: Simplify right side
    380.09x = 202,402.02
  5. Step 5: Solve for x
    x = 202,402.02/380.09
  6. Step 6: Final answer
    x = 532.51

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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.