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Finding the Fourth Proportional to 444.92, 613.62 and 386.60

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Solution

The fourth proportional to 444.92, 613.62 and 386.60 is: 533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.92 : 613.62 = 386.60 : x
  2. Step 2: Convert to fraction form
    444.92/613.62 = 386.60/x
  3. Step 3: Cross multiply
    444.92x = 613.62 × 386.60
  4. Step 4: Simplify right side
    444.92x = 237,225.49
  5. Step 5: Solve for x
    x = 237,225.49/444.92
  6. Step 6: Final answer
    x = 533.19

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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.