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Finding the Fourth Proportional to 450.06, 674.72 and 193.74

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Solution

The fourth proportional to 450.06, 674.72 and 193.74 is: 290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.06 : 674.72 = 193.74 : x
  2. Step 2: Convert to fraction form
    450.06/674.72 = 193.74/x
  3. Step 3: Cross multiply
    450.06x = 674.72 × 193.74
  4. Step 4: Simplify right side
    450.06x = 130,720.25
  5. Step 5: Solve for x
    x = 130,720.25/450.06
  6. Step 6: Final answer
    x = 290.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.