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Finding the Fourth Proportional to 240,767.81, 331,944.51 and 207,137.56

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Solution

The fourth proportional to 240,767.81, 331,944.51 and 207,137.56 is: 285,578.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,767.81 : 331,944.51 = 207,137.56 : x
  2. Step 2: Convert to fraction form
    240,767.81/331,944.51 = 207,137.56/x
  3. Step 3: Cross multiply
    240,767.81x = 331,944.51 × 207,137.56
  4. Step 4: Simplify right side
    240,767.81x = 68,758,175,856.80
  5. Step 5: Solve for x
    x = 68,758,175,856.80/240,767.81
  6. Step 6: Final answer
    x = 285,578.77

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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.