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Finding the Fourth Proportional to 422,968.68, 583,699.68 and 231,983.44

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Solution

The fourth proportional to 422,968.68, 583,699.68 and 231,983.44 is: 320,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,968.68 : 583,699.68 = 231,983.44 : x
  2. Step 2: Convert to fraction form
    422,968.68/583,699.68 = 231,983.44/x
  3. Step 3: Cross multiply
    422,968.68x = 583,699.68 × 231,983.44
  4. Step 4: Simplify right side
    422,968.68x = 135,408,659,693.30
  5. Step 5: Solve for x
    x = 135,408,659,693.30/422,968.68
  6. Step 6: Final answer
    x = 320,138.74

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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.