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Finding the Fourth Proportional to 442.84, 611.15 and 295.37

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Solution

The fourth proportional to 442.84, 611.15 and 295.37 is: 407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.84 : 611.15 = 295.37 : x
  2. Step 2: Convert to fraction form
    442.84/611.15 = 295.37/x
  3. Step 3: Cross multiply
    442.84x = 611.15 × 295.37
  4. Step 4: Simplify right side
    442.84x = 180,515.38
  5. Step 5: Solve for x
    x = 180,515.38/442.84
  6. Step 6: Final answer
    x = 407.63

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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.