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Finding the Fourth Proportional to 376,530, 519,615.05 and 206,767.77

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Solution

The fourth proportional to 376,530, 519,615.05 and 206,767.77 is: 285,341.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,530 : 519,615.05 = 206,767.77 : x
  2. Step 2: Convert to fraction form
    376,530/519,615.05 = 206,767.77/x
  3. Step 3: Cross multiply
    376,530x = 519,615.05 × 206,767.77
  4. Step 4: Simplify right side
    376,530x = 107,439,644,113.10
  5. Step 5: Solve for x
    x = 107,439,644,113.10/376,530
  6. Step 6: Final answer
    x = 285,341.52

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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.