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Finding the Fourth Proportional to 259,901.73, 389,826.54 and 126,873.81

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Solution

The fourth proportional to 259,901.73, 389,826.54 and 126,873.81 is: 190,298.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,901.73 : 389,826.54 = 126,873.81 : x
  2. Step 2: Convert to fraction form
    259,901.73/389,826.54 = 126,873.81/x
  3. Step 3: Cross multiply
    259,901.73x = 389,826.54 × 126,873.81
  4. Step 4: Simplify right side
    259,901.73x = 49,458,778,368.92
  5. Step 5: Solve for x
    x = 49,458,778,368.92/259,901.73
  6. Step 6: Final answer
    x = 190,298.00

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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.