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Finding the Fourth Proportional to 348.45, 524.72 and 303.34

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Solution

The fourth proportional to 348.45, 524.72 and 303.34 is: 456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.45 : 524.72 = 303.34 : x
  2. Step 2: Convert to fraction form
    348.45/524.72 = 303.34/x
  3. Step 3: Cross multiply
    348.45x = 524.72 × 303.34
  4. Step 4: Simplify right side
    348.45x = 159,168.56
  5. Step 5: Solve for x
    x = 159,168.56/348.45
  6. Step 6: Final answer
    x = 456.79

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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.