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Finding the Fourth Proportional to 607.09, 910.91 and 222.25

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Solution

The fourth proportional to 607.09, 910.91 and 222.25 is: 333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.09 : 910.91 = 222.25 : x
  2. Step 2: Convert to fraction form
    607.09/910.91 = 222.25/x
  3. Step 3: Cross multiply
    607.09x = 910.91 × 222.25
  4. Step 4: Simplify right side
    607.09x = 202,449.75
  5. Step 5: Solve for x
    x = 202,449.75/607.09
  6. Step 6: Final answer
    x = 333.48

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1.5x scale

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.