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Finding the Fourth Proportional to 165,414.60, 248,121.90 and 47,089.80

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Solution

The fourth proportional to 165,414.60, 248,121.90 and 47,089.80 is: 70,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,414.60 : 248,121.90 = 47,089.80 : x
  2. Step 2: Convert to fraction form
    165,414.60/248,121.90 = 47,089.80/x
  3. Step 3: Cross multiply
    165,414.60x = 248,121.90 × 47,089.80
  4. Step 4: Simplify right side
    165,414.60x = 11,684,010,646.62
  5. Step 5: Solve for x
    x = 11,684,010,646.62/165,414.60
  6. Step 6: Final answer
    x = 70,634.70

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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.