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Finding the Fourth Proportional to 223,224.40, 334,408.92 and 215,720.56

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Solution

The fourth proportional to 223,224.40, 334,408.92 and 215,720.56 is: 323,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,224.40 : 334,408.92 = 215,720.56 : x
  2. Step 2: Convert to fraction form
    223,224.40/334,408.92 = 215,720.56/x
  3. Step 3: Cross multiply
    223,224.40x = 334,408.92 × 215,720.56
  4. Step 4: Simplify right side
    223,224.40x = 72,138,879,491.40
  5. Step 5: Solve for x
    x = 72,138,879,491.40/223,224.40
  6. Step 6: Final answer
    x = 323,167.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.