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Finding the Fourth Proportional to 635.63, 953.49 and 288.99

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Solution

The fourth proportional to 635.63, 953.49 and 288.99 is: 433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.63 : 953.49 = 288.99 : x
  2. Step 2: Convert to fraction form
    635.63/953.49 = 288.99/x
  3. Step 3: Cross multiply
    635.63x = 953.49 × 288.99
  4. Step 4: Simplify right side
    635.63x = 275,551.21
  5. Step 5: Solve for x
    x = 275,551.21/635.63
  6. Step 6: Final answer
    x = 433.51

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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.