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Finding the Fourth Proportional to 344.32, 520.16 and 341.28

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Solution

The fourth proportional to 344.32, 520.16 and 341.28 is: 515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.32 : 520.16 = 341.28 : x
  2. Step 2: Convert to fraction form
    344.32/520.16 = 341.28/x
  3. Step 3: Cross multiply
    344.32x = 520.16 × 341.28
  4. Step 4: Simplify right side
    344.32x = 177,518.50
  5. Step 5: Solve for x
    x = 177,518.50/344.32
  6. Step 6: Final answer
    x = 515.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.