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Finding the Fourth Proportional to 553.96, 830.74 and 334.05

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Solution

The fourth proportional to 553.96, 830.74 and 334.05 is: 500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.96 : 830.74 = 334.05 : x
  2. Step 2: Convert to fraction form
    553.96/830.74 = 334.05/x
  3. Step 3: Cross multiply
    553.96x = 830.74 × 334.05
  4. Step 4: Simplify right side
    553.96x = 277,508.70
  5. Step 5: Solve for x
    x = 277,508.70/553.96
  6. Step 6: Final answer
    x = 500.95

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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.