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Finding the Fourth Proportional to 303,322.45, 455,147.70 and 125,847.40

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Solution

The fourth proportional to 303,322.45, 455,147.70 and 125,847.40 is: 188,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,322.45 : 455,147.70 = 125,847.40 : x
  2. Step 2: Convert to fraction form
    303,322.45/455,147.70 = 125,847.40/x
  3. Step 3: Cross multiply
    303,322.45x = 455,147.70 × 125,847.40
  4. Step 4: Simplify right side
    303,322.45x = 57,279,154,660.98
  5. Step 5: Solve for x
    x = 57,279,154,660.98/303,322.45
  6. Step 6: Final answer
    x = 188,839.15

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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.