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Finding the Fourth Proportional to 422,103.80, 582,500.57 and 228,510.10

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Solution

The fourth proportional to 422,103.80, 582,500.57 and 228,510.10 is: 315,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,103.80 : 582,500.57 = 228,510.10 : x
  2. Step 2: Convert to fraction form
    422,103.80/582,500.57 = 228,510.10/x
  3. Step 3: Cross multiply
    422,103.80x = 582,500.57 × 228,510.10
  4. Step 4: Simplify right side
    422,103.80x = 133,107,261,523.59
  5. Step 5: Solve for x
    x = 133,107,261,523.59/422,103.80
  6. Step 6: Final answer
    x = 315,342.49

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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.