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Finding the Fourth Proportional to 150,190.58, 207,262.45 and 81,279.90

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Solution

The fourth proportional to 150,190.58, 207,262.45 and 81,279.90 is: 112,165.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,190.58 : 207,262.45 = 81,279.90 : x
  2. Step 2: Convert to fraction form
    150,190.58/207,262.45 = 81,279.90/x
  3. Step 3: Cross multiply
    150,190.58x = 207,262.45 × 81,279.90
  4. Step 4: Simplify right side
    150,190.58x = 16,846,271,311.35
  5. Step 5: Solve for x
    x = 16,846,271,311.35/150,190.58
  6. Step 6: Final answer
    x = 112,165.97

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1.5x scale

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.