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Finding the Fourth Proportional to 445.66, 671.53 and 366.28

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Solution

The fourth proportional to 445.66, 671.53 and 366.28 is: 551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.66 : 671.53 = 366.28 : x
  2. Step 2: Convert to fraction form
    445.66/671.53 = 366.28/x
  3. Step 3: Cross multiply
    445.66x = 671.53 × 366.28
  4. Step 4: Simplify right side
    445.66x = 245,966.10
  5. Step 5: Solve for x
    x = 245,966.10/445.66
  6. Step 6: Final answer
    x = 551.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.