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Finding the Fourth Proportional to 684.32, 1,026.36 and 222.03

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Solution

The fourth proportional to 684.32, 1,026.36 and 222.03 is: 333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    684.32 : 1,026.36 = 222.03 : x
  2. Step 2: Convert to fraction form
    684.32/1,026.36 = 222.03/x
  3. Step 3: Cross multiply
    684.32x = 1,026.36 × 222.03
  4. Step 4: Simplify right side
    684.32x = 227,887.39
  5. Step 5: Solve for x
    x = 227,887.39/684.32
  6. Step 6: Final answer
    x = 333.01

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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.