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Finding the Fourth Proportional to 443.07, 611.82 and 370.17

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Solution

The fourth proportional to 443.07, 611.82 and 370.17 is: 511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.07 : 611.82 = 370.17 : x
  2. Step 2: Convert to fraction form
    443.07/611.82 = 370.17/x
  3. Step 3: Cross multiply
    443.07x = 611.82 × 370.17
  4. Step 4: Simplify right side
    443.07x = 226,477.41
  5. Step 5: Solve for x
    x = 226,477.41/443.07
  6. Step 6: Final answer
    x = 511.15

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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.