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Finding the Fourth Proportional to 625.57, 863.32 and 376.93

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Solution

The fourth proportional to 625.57, 863.32 and 376.93 is: 520.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.57 : 863.32 = 376.93 : x
  2. Step 2: Convert to fraction form
    625.57/863.32 = 376.93/x
  3. Step 3: Cross multiply
    625.57x = 863.32 × 376.93
  4. Step 4: Simplify right side
    625.57x = 325,407.19
  5. Step 5: Solve for x
    x = 325,407.19/625.57
  6. Step 6: Final answer
    x = 520.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.