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Finding the Fourth Proportional to 630.05, 945.24 and 191.29

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Solution

The fourth proportional to 630.05, 945.24 and 191.29 is: 286.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.05 : 945.24 = 191.29 : x
  2. Step 2: Convert to fraction form
    630.05/945.24 = 191.29/x
  3. Step 3: Cross multiply
    630.05x = 945.24 × 191.29
  4. Step 4: Simplify right side
    630.05x = 180,814.96
  5. Step 5: Solve for x
    x = 180,814.96/630.05
  6. Step 6: Final answer
    x = 286.99

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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.