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Finding the Fourth Proportional to 635.70, 953.64 and 289.02

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Solution

The fourth proportional to 635.70, 953.64 and 289.02 is: 433.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.70 : 953.64 = 289.02 : x
  2. Step 2: Convert to fraction form
    635.70/953.64 = 289.02/x
  3. Step 3: Cross multiply
    635.70x = 953.64 × 289.02
  4. Step 4: Simplify right side
    635.70x = 275,621.03
  5. Step 5: Solve for x
    x = 275,621.03/635.70
  6. Step 6: Final answer
    x = 433.57

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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.