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Finding the Fourth Proportional to 376,141.96, 519,086.68 and 215,018.38

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Solution

The fourth proportional to 376,141.96, 519,086.68 and 215,018.38 is: 296,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,141.96 : 519,086.68 = 215,018.38 : x
  2. Step 2: Convert to fraction form
    376,141.96/519,086.68 = 215,018.38/x
  3. Step 3: Cross multiply
    376,141.96x = 519,086.68 × 215,018.38
  4. Step 4: Simplify right side
    376,141.96x = 111,613,177,124.49
  5. Step 5: Solve for x
    x = 111,613,177,124.49/376,141.96
  6. Step 6: Final answer
    x = 296,731.52

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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.