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Finding the Fourth Proportional to 344.93, 512.06 and 330.35

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Solution

The fourth proportional to 344.93, 512.06 and 330.35 is: 490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.93 : 512.06 = 330.35 : x
  2. Step 2: Convert to fraction form
    344.93/512.06 = 330.35/x
  3. Step 3: Cross multiply
    344.93x = 512.06 × 330.35
  4. Step 4: Simplify right side
    344.93x = 169,154.81
  5. Step 5: Solve for x
    x = 169,154.81/344.93
  6. Step 6: Final answer
    x = 490.41

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.