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Finding the Fourth Proportional to 351.41, 487.04 and 344.93

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Solution

The fourth proportional to 351.41, 487.04 and 344.93 is: 478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.41 : 487.04 = 344.93 : x
  2. Step 2: Convert to fraction form
    351.41/487.04 = 344.93/x
  3. Step 3: Cross multiply
    351.41x = 487.04 × 344.93
  4. Step 4: Simplify right side
    351.41x = 167,994.71
  5. Step 5: Solve for x
    x = 167,994.71/351.41
  6. Step 6: Final answer
    x = 478.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.