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Finding the Fourth Proportional to 372,826.86, 514,559.50 and 219,881.87

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Solution

The fourth proportional to 372,826.86, 514,559.50 and 219,881.87 is: 303,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,826.86 : 514,559.50 = 219,881.87 : x
  2. Step 2: Convert to fraction form
    372,826.86/514,559.50 = 219,881.87/x
  3. Step 3: Cross multiply
    372,826.86x = 514,559.50 × 219,881.87
  4. Step 4: Simplify right side
    372,826.86x = 113,142,301,414.06
  5. Step 5: Solve for x
    x = 113,142,301,414.06/372,826.86
  6. Step 6: Final answer
    x = 303,471.43

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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.