Home / 223,998.35-309,117.58-123,396.35

Finding the Fourth Proportional to 223,998.35, 309,117.58 and 123,396.35

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Solution

The fourth proportional to 223,998.35, 309,117.58 and 123,396.35 is: 170,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,998.35 : 309,117.58 = 123,396.35 : x
  2. Step 2: Convert to fraction form
    223,998.35/309,117.58 = 123,396.35/x
  3. Step 3: Cross multiply
    223,998.35x = 309,117.58 × 123,396.35
  4. Step 4: Simplify right side
    223,998.35x = 38,143,980,782.78
  5. Step 5: Solve for x
    x = 38,143,980,782.78/223,998.35
  6. Step 6: Final answer
    x = 170,286.88

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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.