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Finding the Fourth Proportional to 259,303.32, 389,168.82 and 200,497.32

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Solution

The fourth proportional to 259,303.32, 389,168.82 and 200,497.32 is: 300,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,303.32 : 389,168.82 = 200,497.32 : x
  2. Step 2: Convert to fraction form
    259,303.32/389,168.82 = 200,497.32/x
  3. Step 3: Cross multiply
    259,303.32x = 389,168.82 × 200,497.32
  4. Step 4: Simplify right side
    259,303.32x = 78,027,305,437.56
  5. Step 5: Solve for x
    x = 78,027,305,437.56/259,303.32
  6. Step 6: Final answer
    x = 300,911.32

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1.5x scale

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.