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Finding the Fourth Proportional to 450.03, 620.99 and 250.84

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Solution

The fourth proportional to 450.03, 620.99 and 250.84 is: 346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.03 : 620.99 = 250.84 : x
  2. Step 2: Convert to fraction form
    450.03/620.99 = 250.84/x
  3. Step 3: Cross multiply
    450.03x = 620.99 × 250.84
  4. Step 4: Simplify right side
    450.03x = 155,766.81
  5. Step 5: Solve for x
    x = 155,766.81/450.03
  6. Step 6: Final answer
    x = 346.13

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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.