Home / 290,259.50-400,556.56-159,439.73

Finding the Fourth Proportional to 290,259.50, 400,556.56 and 159,439.73

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Solution

The fourth proportional to 290,259.50, 400,556.56 and 159,439.73 is: 220,025.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,259.50 : 400,556.56 = 159,439.73 : x
  2. Step 2: Convert to fraction form
    290,259.50/400,556.56 = 159,439.73/x
  3. Step 3: Cross multiply
    290,259.50x = 400,556.56 × 159,439.73
  4. Step 4: Simplify right side
    290,259.50x = 63,864,629,377.53
  5. Step 5: Solve for x
    x = 63,864,629,377.53/290,259.50
  6. Step 6: Final answer
    x = 220,025.97

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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.