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Finding the Fourth Proportional to 295.70, 441.45 and 274.29

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Solution

The fourth proportional to 295.70, 441.45 and 274.29 is: 409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.70 : 441.45 = 274.29 : x
  2. Step 2: Convert to fraction form
    295.70/441.45 = 274.29/x
  3. Step 3: Cross multiply
    295.70x = 441.45 × 274.29
  4. Step 4: Simplify right side
    295.70x = 121,083.67
  5. Step 5: Solve for x
    x = 121,083.67/295.70
  6. Step 6: Final answer
    x = 409.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.