Home / 209,278.92-288,947.46-140,471.58

Finding the Fourth Proportional to 209,278.92, 288,947.46 and 140,471.58

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Solution

The fourth proportional to 209,278.92, 288,947.46 and 140,471.58 is: 193,946.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,278.92 : 288,947.46 = 140,471.58 : x
  2. Step 2: Convert to fraction form
    209,278.92/288,947.46 = 140,471.58/x
  3. Step 3: Cross multiply
    209,278.92x = 288,947.46 × 140,471.58
  4. Step 4: Simplify right side
    209,278.92x = 40,588,906,243.19
  5. Step 5: Solve for x
    x = 40,588,906,243.19/209,278.92
  6. Step 6: Final answer
    x = 193,946.46

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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.