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Finding the Fourth Proportional to 251,883.16, 347,563.38 and 138,713.32

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Solution

The fourth proportional to 251,883.16, 347,563.38 and 138,713.32 is: 191,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,883.16 : 347,563.38 = 138,713.32 : x
  2. Step 2: Convert to fraction form
    251,883.16/347,563.38 = 138,713.32/x
  3. Step 3: Cross multiply
    251,883.16x = 347,563.38 × 138,713.32
  4. Step 4: Simplify right side
    251,883.16x = 48,211,670,350.22
  5. Step 5: Solve for x
    x = 48,211,670,350.22/251,883.16
  6. Step 6: Final answer
    x = 191,404.90

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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.