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Finding the Fourth Proportional to 625.91, 863.33 and 377.19

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Solution

The fourth proportional to 625.91, 863.33 and 377.19 is: 520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.91 : 863.33 = 377.19 : x
  2. Step 2: Convert to fraction form
    625.91/863.33 = 377.19/x
  3. Step 3: Cross multiply
    625.91x = 863.33 × 377.19
  4. Step 4: Simplify right side
    625.91x = 325,637.56
  5. Step 5: Solve for x
    x = 325,637.56/625.91
  6. Step 6: Final answer
    x = 520.27

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1.5x scale

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.