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Finding the Fourth Proportional to 639,522.24, 959,286.24 and 166,174.08

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Solution

The fourth proportional to 639,522.24, 959,286.24 and 166,174.08 is: 249,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,522.24 : 959,286.24 = 166,174.08 : x
  2. Step 2: Convert to fraction form
    639,522.24/959,286.24 = 166,174.08/x
  3. Step 3: Cross multiply
    639,522.24x = 959,286.24 × 166,174.08
  4. Step 4: Simplify right side
    639,522.24x = 159,408,508,388.66
  5. Step 5: Solve for x
    x = 159,408,508,388.66/639,522.24
  6. Step 6: Final answer
    x = 249,261.87

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1.5x scale

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.