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Finding the Fourth Proportional to 630.16, 944.42 and 386.14

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Solution

The fourth proportional to 630.16, 944.42 and 386.14 is: 578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.16 : 944.42 = 386.14 : x
  2. Step 2: Convert to fraction form
    630.16/944.42 = 386.14/x
  3. Step 3: Cross multiply
    630.16x = 944.42 × 386.14
  4. Step 4: Simplify right side
    630.16x = 364,678.34
  5. Step 5: Solve for x
    x = 364,678.34/630.16
  6. Step 6: Final answer
    x = 578.71

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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.