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Finding the Fourth Proportional to 346.35, 518.72 and 264.54

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Solution

The fourth proportional to 346.35, 518.72 and 264.54 is: 396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.35 : 518.72 = 264.54 : x
  2. Step 2: Convert to fraction form
    346.35/518.72 = 264.54/x
  3. Step 3: Cross multiply
    346.35x = 518.72 × 264.54
  4. Step 4: Simplify right side
    346.35x = 137,220.87
  5. Step 5: Solve for x
    x = 137,220.87/346.35
  6. Step 6: Final answer
    x = 396.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.