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Finding the Fourth Proportional to 223,777.72, 335,697.49 and 71,979.06

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Solution

The fourth proportional to 223,777.72, 335,697.49 and 71,979.06 is: 107,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,777.72 : 335,697.49 = 71,979.06 : x
  2. Step 2: Convert to fraction form
    223,777.72/335,697.49 = 71,979.06/x
  3. Step 3: Cross multiply
    223,777.72x = 335,697.49 × 71,979.06
  4. Step 4: Simplify right side
    223,777.72x = 24,163,189,774.56
  5. Step 5: Solve for x
    x = 24,163,189,774.56/223,777.72
  6. Step 6: Final answer
    x = 107,978.53

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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.