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Finding the Fourth Proportional to 450.88, 625.15 and 443.32

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Solution

The fourth proportional to 450.88, 625.15 and 443.32 is: 614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.88 : 625.15 = 443.32 : x
  2. Step 2: Convert to fraction form
    450.88/625.15 = 443.32/x
  3. Step 3: Cross multiply
    450.88x = 625.15 × 443.32
  4. Step 4: Simplify right side
    450.88x = 277,141.50
  5. Step 5: Solve for x
    x = 277,141.50/450.88
  6. Step 6: Final answer
    x = 614.67

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.