Home / 240,640.20-331,938.19-154,570.20

Finding the Fourth Proportional to 240,640.20, 331,938.19 and 154,570.20

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Solution

The fourth proportional to 240,640.20, 331,938.19 and 154,570.20 is: 213,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,640.20 : 331,938.19 = 154,570.20 : x
  2. Step 2: Convert to fraction form
    240,640.20/331,938.19 = 154,570.20/x
  3. Step 3: Cross multiply
    240,640.20x = 331,938.19 × 154,570.20
  4. Step 4: Simplify right side
    240,640.20x = 51,307,752,415.94
  5. Step 5: Solve for x
    x = 51,307,752,415.94/240,640.20
  6. Step 6: Final answer
    x = 213,213.55

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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.