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Finding the Fourth Proportional to 376,430.92, 519,458.34 and 206,667.88

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Solution

The fourth proportional to 376,430.92, 519,458.34 and 206,667.88 is: 285,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,430.92 : 519,458.34 = 206,667.88 : x
  2. Step 2: Convert to fraction form
    376,430.92/519,458.34 = 206,667.88/x
  3. Step 3: Cross multiply
    376,430.92x = 519,458.34 × 206,667.88
  4. Step 4: Simplify right side
    376,430.92x = 107,355,353,876.12
  5. Step 5: Solve for x
    x = 107,355,353,876.12/376,430.92
  6. Step 6: Final answer
    x = 285,192.71

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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.