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Finding the Fourth Proportional to 247,025.97, 340,896.47 and 138,134.16

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Solution

The fourth proportional to 247,025.97, 340,896.47 and 138,134.16 is: 190,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,025.97 : 340,896.47 = 138,134.16 : x
  2. Step 2: Convert to fraction form
    247,025.97/340,896.47 = 138,134.16/x
  3. Step 3: Cross multiply
    247,025.97x = 340,896.47 × 138,134.16
  4. Step 4: Simplify right side
    247,025.97x = 47,089,446,839.74
  5. Step 5: Solve for x
    x = 47,089,446,839.74/247,025.97
  6. Step 6: Final answer
    x = 190,625.49

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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.