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Finding the Fourth Proportional to 259,515.78, 358,131.84 and 146,338.56

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Solution

The fourth proportional to 259,515.78, 358,131.84 and 146,338.56 is: 201,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,515.78 : 358,131.84 = 146,338.56 : x
  2. Step 2: Convert to fraction form
    259,515.78/358,131.84 = 146,338.56/x
  3. Step 3: Cross multiply
    259,515.78x = 358,131.84 × 146,338.56
  4. Step 4: Simplify right side
    259,515.78x = 52,408,497,755.75
  5. Step 5: Solve for x
    x = 52,408,497,755.75/259,515.78
  6. Step 6: Final answer
    x = 201,947.25

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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.