Home / 268,780.20-402,824.70-206,140.20

Finding the Fourth Proportional to 268,780.20, 402,824.70 and 206,140.20

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Solution

The fourth proportional to 268,780.20, 402,824.70 and 206,140.20 is: 308,945.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,780.20 : 402,824.70 = 206,140.20 : x
  2. Step 2: Convert to fraction form
    268,780.20/402,824.70 = 206,140.20/x
  3. Step 3: Cross multiply
    268,780.20x = 402,824.70 × 206,140.20
  4. Step 4: Simplify right side
    268,780.20x = 83,038,364,222.94
  5. Step 5: Solve for x
    x = 83,038,364,222.94/268,780.20
  6. Step 6: Final answer
    x = 308,945.24

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1.5x scale

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.