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Finding the Fourth Proportional to 352.19, 485.48 and 253.91

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Solution

The fourth proportional to 352.19, 485.48 and 253.91 is: 350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.19 : 485.48 = 253.91 : x
  2. Step 2: Convert to fraction form
    352.19/485.48 = 253.91/x
  3. Step 3: Cross multiply
    352.19x = 485.48 × 253.91
  4. Step 4: Simplify right side
    352.19x = 123,266.43
  5. Step 5: Solve for x
    x = 123,266.43/352.19
  6. Step 6: Final answer
    x = 350.00

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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.