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Finding the Fourth Proportional to 370.25, 510.97 and 222.89

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Solution

The fourth proportional to 370.25, 510.97 and 222.89 is: 307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.25 : 510.97 = 222.89 : x
  2. Step 2: Convert to fraction form
    370.25/510.97 = 222.89/x
  3. Step 3: Cross multiply
    370.25x = 510.97 × 222.89
  4. Step 4: Simplify right side
    370.25x = 113,890.10
  5. Step 5: Solve for x
    x = 113,890.10/370.25
  6. Step 6: Final answer
    x = 307.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.