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Finding the Fourth Proportional to 352.71, 531.71 and 347.85

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Solution

The fourth proportional to 352.71, 531.71 and 347.85 is: 524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.71 : 531.71 = 347.85 : x
  2. Step 2: Convert to fraction form
    352.71/531.71 = 347.85/x
  3. Step 3: Cross multiply
    352.71x = 531.71 × 347.85
  4. Step 4: Simplify right side
    352.71x = 184,953.58
  5. Step 5: Solve for x
    x = 184,953.58/352.71
  6. Step 6: Final answer
    x = 524.38

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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.