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Finding the Fourth Proportional to 346.28, 518.20 and 301.12

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Solution

The fourth proportional to 346.28, 518.20 and 301.12 is: 450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.28 : 518.20 = 301.12 : x
  2. Step 2: Convert to fraction form
    346.28/518.20 = 301.12/x
  3. Step 3: Cross multiply
    346.28x = 518.20 × 301.12
  4. Step 4: Simplify right side
    346.28x = 156,038.34
  5. Step 5: Solve for x
    x = 156,038.34/346.28
  6. Step 6: Final answer
    x = 450.62

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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.