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Finding the Fourth Proportional to 379.96, 572.08 and 334.60

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Solution

The fourth proportional to 379.96, 572.08 and 334.60 is: 503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.96 : 572.08 = 334.60 : x
  2. Step 2: Convert to fraction form
    379.96/572.08 = 334.60/x
  3. Step 3: Cross multiply
    379.96x = 572.08 × 334.60
  4. Step 4: Simplify right side
    379.96x = 191,417.97
  5. Step 5: Solve for x
    x = 191,417.97/379.96
  6. Step 6: Final answer
    x = 503.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.