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Finding the Fourth Proportional to 335,105.72, 502,500.67 and 121,723.21

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Solution

The fourth proportional to 335,105.72, 502,500.67 and 121,723.21 is: 182,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,105.72 : 502,500.67 = 121,723.21 : x
  2. Step 2: Convert to fraction form
    335,105.72/502,500.67 = 121,723.21/x
  3. Step 3: Cross multiply
    335,105.72x = 502,500.67 × 121,723.21
  4. Step 4: Simplify right side
    335,105.72x = 61,165,993,752.33
  5. Step 5: Solve for x
    x = 61,165,993,752.33/335,105.72
  6. Step 6: Final answer
    x = 182,527.45

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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.