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Finding the Fourth Proportional to 325.29, 485.48 and 297.75

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Solution

The fourth proportional to 325.29, 485.48 and 297.75 is: 444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.29 : 485.48 = 297.75 : x
  2. Step 2: Convert to fraction form
    325.29/485.48 = 297.75/x
  3. Step 3: Cross multiply
    325.29x = 485.48 × 297.75
  4. Step 4: Simplify right side
    325.29x = 144,551.67
  5. Step 5: Solve for x
    x = 144,551.67/325.29
  6. Step 6: Final answer
    x = 444.38

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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.