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Finding the Fourth Proportional to 422,406.08, 582,915.54 and 228,810.10

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Solution

The fourth proportional to 422,406.08, 582,915.54 and 228,810.10 is: 315,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,406.08 : 582,915.54 = 228,810.10 : x
  2. Step 2: Convert to fraction form
    422,406.08/582,915.54 = 228,810.10/x
  3. Step 3: Cross multiply
    422,406.08x = 582,915.54 × 228,810.10
  4. Step 4: Simplify right side
    422,406.08x = 133,376,962,998.95
  5. Step 5: Solve for x
    x = 133,376,962,998.95/422,406.08
  6. Step 6: Final answer
    x = 315,755.31

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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.