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Finding the Fourth Proportional to 347.76, 518.72 and 335.16

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Solution

The fourth proportional to 347.76, 518.72 and 335.16 is: 499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.76 : 518.72 = 335.16 : x
  2. Step 2: Convert to fraction form
    347.76/518.72 = 335.16/x
  3. Step 3: Cross multiply
    347.76x = 518.72 × 335.16
  4. Step 4: Simplify right side
    347.76x = 173,852.52
  5. Step 5: Solve for x
    x = 173,852.52/347.76
  6. Step 6: Final answer
    x = 499.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.