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Finding the Fourth Proportional to 376,353.92, 519,369.14 and 223,422.78

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Solution

The fourth proportional to 376,353.92, 519,369.14 and 223,422.78 is: 308,323.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,353.92 : 519,369.14 = 223,422.78 : x
  2. Step 2: Convert to fraction form
    376,353.92/519,369.14 = 223,422.78/x
  3. Step 3: Cross multiply
    376,353.92x = 519,369.14 × 223,422.78
  4. Step 4: Simplify right side
    376,353.92x = 116,038,897,105.01
  5. Step 5: Solve for x
    x = 116,038,897,105.01/376,353.92
  6. Step 6: Final answer
    x = 308,323.87

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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.