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Finding the Fourth Proportional to 614.06, 847.38 and 348.49

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Solution

The fourth proportional to 614.06, 847.38 and 348.49 is: 480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.06 : 847.38 = 348.49 : x
  2. Step 2: Convert to fraction form
    614.06/847.38 = 348.49/x
  3. Step 3: Cross multiply
    614.06x = 847.38 × 348.49
  4. Step 4: Simplify right side
    614.06x = 295,305.82
  5. Step 5: Solve for x
    x = 295,305.82/614.06
  6. Step 6: Final answer
    x = 480.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.