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Finding the Fourth Proportional to 215,375.34, 297,183.92 and 124,739.84

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Solution

The fourth proportional to 215,375.34, 297,183.92 and 124,739.84 is: 172,121.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,375.34 : 297,183.92 = 124,739.84 : x
  2. Step 2: Convert to fraction form
    215,375.34/297,183.92 = 124,739.84/x
  3. Step 3: Cross multiply
    215,375.34x = 297,183.92 × 124,739.84
  4. Step 4: Simplify right side
    215,375.34x = 37,070,674,631.37
  5. Step 5: Solve for x
    x = 37,070,674,631.37/215,375.34
  6. Step 6: Final answer
    x = 172,121.26

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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.