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Finding the Fourth Proportional to 422,883, 634,326.60 and 107,340

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Solution

The fourth proportional to 422,883, 634,326.60 and 107,340 is: 161,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,883 : 634,326.60 = 107,340 : x
  2. Step 2: Convert to fraction form
    422,883/634,326.60 = 107,340/x
  3. Step 3: Cross multiply
    422,883x = 634,326.60 × 107,340
  4. Step 4: Simplify right side
    422,883x = 68,088,617,244
  5. Step 5: Solve for x
    x = 68,088,617,244/422,883
  6. Step 6: Final answer
    x = 161,010.53

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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.