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Finding the Fourth Proportional to 295.48, 443.40 and 141.58

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Solution

The fourth proportional to 295.48, 443.40 and 141.58 is: 212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.48 : 443.40 = 141.58 : x
  2. Step 2: Convert to fraction form
    295.48/443.40 = 141.58/x
  3. Step 3: Cross multiply
    295.48x = 443.40 × 141.58
  4. Step 4: Simplify right side
    295.48x = 62,776.57
  5. Step 5: Solve for x
    x = 62,776.57/295.48
  6. Step 6: Final answer
    x = 212.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.