Home / 259,904.39-389,856.31-97,828.70

Finding the Fourth Proportional to 259,904.39, 389,856.31 and 97,828.70

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Solution

The fourth proportional to 259,904.39, 389,856.31 and 97,828.70 is: 146,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,904.39 : 389,856.31 = 97,828.70 : x
  2. Step 2: Convert to fraction form
    259,904.39/389,856.31 = 97,828.70/x
  3. Step 3: Cross multiply
    259,904.39x = 389,856.31 × 97,828.70
  4. Step 4: Simplify right side
    259,904.39x = 38,139,135,629.06
  5. Step 5: Solve for x
    x = 38,139,135,629.06/259,904.39
  6. Step 6: Final answer
    x = 146,742.95

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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.