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Finding the Fourth Proportional to 383.93, 531.20 and 334.91

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Solution

The fourth proportional to 383.93, 531.20 and 334.91 is: 463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.93 : 531.20 = 334.91 : x
  2. Step 2: Convert to fraction form
    383.93/531.20 = 334.91/x
  3. Step 3: Cross multiply
    383.93x = 531.20 × 334.91
  4. Step 4: Simplify right side
    383.93x = 177,899.86
  5. Step 5: Solve for x
    x = 177,899.86/383.93
  6. Step 6: Final answer
    x = 463.37

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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.