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Finding the Fourth Proportional to 207,344.80, 309,399.60 and 185,004.64

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Solution

The fourth proportional to 207,344.80, 309,399.60 and 185,004.64 is: 276,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,344.80 : 309,399.60 = 185,004.64 : x
  2. Step 2: Convert to fraction form
    207,344.80/309,399.60 = 185,004.64/x
  3. Step 3: Cross multiply
    207,344.80x = 309,399.60 × 185,004.64
  4. Step 4: Simplify right side
    207,344.80x = 57,240,361,614.14
  5. Step 5: Solve for x
    x = 57,240,361,614.14/207,344.80
  6. Step 6: Final answer
    x = 276,063.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.