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Finding the Fourth Proportional to 247,059.83, 340,928.41 and 136,671.88

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Solution

The fourth proportional to 247,059.83, 340,928.41 and 136,671.88 is: 188,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,059.83 : 340,928.41 = 136,671.88 : x
  2. Step 2: Convert to fraction form
    247,059.83/340,928.41 = 136,671.88/x
  3. Step 3: Cross multiply
    247,059.83x = 340,928.41 × 136,671.88
  4. Step 4: Simplify right side
    247,059.83x = 46,595,327,400.47
  5. Step 5: Solve for x
    x = 46,595,327,400.47/247,059.83
  6. Step 6: Final answer
    x = 188,599.37

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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.