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Finding the Fourth Proportional to 295.79, 443.54 and 90.29

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Solution

The fourth proportional to 295.79, 443.54 and 90.29 is: 135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.79 : 443.54 = 90.29 : x
  2. Step 2: Convert to fraction form
    295.79/443.54 = 90.29/x
  3. Step 3: Cross multiply
    295.79x = 443.54 × 90.29
  4. Step 4: Simplify right side
    295.79x = 40,048.56
  5. Step 5: Solve for x
    x = 40,048.56/295.79
  6. Step 6: Final answer
    x = 135.40

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