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Finding the Fourth Proportional to 351.61, 482.45 and 348.35

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Solution

The fourth proportional to 351.61, 482.45 and 348.35 is: 477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.61 : 482.45 = 348.35 : x
  2. Step 2: Convert to fraction form
    351.61/482.45 = 348.35/x
  3. Step 3: Cross multiply
    351.61x = 482.45 × 348.35
  4. Step 4: Simplify right side
    351.61x = 168,057.30
  5. Step 5: Solve for x
    x = 168,057.30/351.61
  6. Step 6: Final answer
    x = 477.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.