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Finding the Fourth Proportional to 243,556.32, 335,889.32 and 202,855.56

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Solution

The fourth proportional to 243,556.32, 335,889.32 and 202,855.56 is: 279,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,556.32 : 335,889.32 = 202,855.56 : x
  2. Step 2: Convert to fraction form
    243,556.32/335,889.32 = 202,855.56/x
  3. Step 3: Cross multiply
    243,556.32x = 335,889.32 × 202,855.56
  4. Step 4: Simplify right side
    243,556.32x = 68,137,016,106.62
  5. Step 5: Solve for x
    x = 68,137,016,106.62/243,556.32
  6. Step 6: Final answer
    x = 279,758.77

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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.