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Finding the Fourth Proportional to 699.32, 1,048.16 and 333.26

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Solution

The fourth proportional to 699.32, 1,048.16 and 333.26 is: 499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.32 : 1,048.16 = 333.26 : x
  2. Step 2: Convert to fraction form
    699.32/1,048.16 = 333.26/x
  3. Step 3: Cross multiply
    699.32x = 1,048.16 × 333.26
  4. Step 4: Simplify right side
    699.32x = 349,313.26
  5. Step 5: Solve for x
    x = 349,313.26/699.32
  6. Step 6: Final answer
    x = 499.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.