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Finding the Fourth Proportional to 355.08, 529.62 and 344.28

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Solution

The fourth proportional to 355.08, 529.62 and 344.28 is: 513.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.08 : 529.62 = 344.28 : x
  2. Step 2: Convert to fraction form
    355.08/529.62 = 344.28/x
  3. Step 3: Cross multiply
    355.08x = 529.62 × 344.28
  4. Step 4: Simplify right side
    355.08x = 182,337.57
  5. Step 5: Solve for x
    x = 182,337.57/355.08
  6. Step 6: Final answer
    x = 513.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.