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Finding the Fourth Proportional to 372,856.24, 514,845.42 and 303,956.80

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Solution

The fourth proportional to 372,856.24, 514,845.42 and 303,956.80 is: 419,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,856.24 : 514,845.42 = 303,956.80 : x
  2. Step 2: Convert to fraction form
    372,856.24/514,845.42 = 303,956.80/x
  3. Step 3: Cross multiply
    372,856.24x = 514,845.42 × 303,956.80
  4. Step 4: Simplify right side
    372,856.24x = 156,490,766,357.86
  5. Step 5: Solve for x
    x = 156,490,766,357.86/372,856.24
  6. Step 6: Final answer
    x = 419,708.05

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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.