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Finding the Fourth Proportional to 247,022.88, 340,899.32 and 139,599.94

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Solution

The fourth proportional to 247,022.88, 340,899.32 and 139,599.94 is: 192,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,022.88 : 340,899.32 = 139,599.94 : x
  2. Step 2: Convert to fraction form
    247,022.88/340,899.32 = 139,599.94/x
  3. Step 3: Cross multiply
    247,022.88x = 340,899.32 × 139,599.94
  4. Step 4: Simplify right side
    247,022.88x = 47,589,524,618.04
  5. Step 5: Solve for x
    x = 47,589,524,618.04/247,022.88
  6. Step 6: Final answer
    x = 192,652.29

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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.