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Finding the Fourth Proportional to 404.95, 607.29 and 222.16

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Solution

The fourth proportional to 404.95, 607.29 and 222.16 is: 333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.95 : 607.29 = 222.16 : x
  2. Step 2: Convert to fraction form
    404.95/607.29 = 222.16/x
  3. Step 3: Cross multiply
    404.95x = 607.29 × 222.16
  4. Step 4: Simplify right side
    404.95x = 134,915.55
  5. Step 5: Solve for x
    x = 134,915.55/404.95
  6. Step 6: Final answer
    x = 333.17

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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.