Home / 346.20-518.90-151.14

Finding the Fourth Proportional to 346.20, 518.90 and 151.14

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Solution

The fourth proportional to 346.20, 518.90 and 151.14 is: 226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.20 : 518.90 = 151.14 : x
  2. Step 2: Convert to fraction form
    346.20/518.90 = 151.14/x
  3. Step 3: Cross multiply
    346.20x = 518.90 × 151.14
  4. Step 4: Simplify right side
    346.20x = 78,425.79
  5. Step 5: Solve for x
    x = 78,425.79/346.20
  6. Step 6: Final answer
    x = 226.53

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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.