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Finding the Fourth Proportional to 360.42, 537.78 and 352.12

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Solution

The fourth proportional to 360.42, 537.78 and 352.12 is: 525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.42 : 537.78 = 352.12 : x
  2. Step 2: Convert to fraction form
    360.42/537.78 = 352.12/x
  3. Step 3: Cross multiply
    360.42x = 537.78 × 352.12
  4. Step 4: Simplify right side
    360.42x = 189,363.09
  5. Step 5: Solve for x
    x = 189,363.09/360.42
  6. Step 6: Final answer
    x = 525.40

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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.