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Finding the Fourth Proportional to 422,000.73, 582,360.95 and 228,408.41

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Solution

The fourth proportional to 422,000.73, 582,360.95 and 228,408.41 is: 315,203.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,000.73 : 582,360.95 = 228,408.41 : x
  2. Step 2: Convert to fraction form
    422,000.73/582,360.95 = 228,408.41/x
  3. Step 3: Cross multiply
    422,000.73x = 582,360.95 × 228,408.41
  4. Step 4: Simplify right side
    422,000.73x = 133,016,134,581.74
  5. Step 5: Solve for x
    x = 133,016,134,581.74/422,000.73
  6. Step 6: Final answer
    x = 315,203.57

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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.