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Finding the Fourth Proportional to 223,932.44, 309,012.72 and 123,330.44

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Solution

The fourth proportional to 223,932.44, 309,012.72 and 123,330.44 is: 170,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,932.44 : 309,012.72 = 123,330.44 : x
  2. Step 2: Convert to fraction form
    223,932.44/309,012.72 = 123,330.44/x
  3. Step 3: Cross multiply
    223,932.44x = 309,012.72 × 123,330.44
  4. Step 4: Simplify right side
    223,932.44x = 38,110,674,723.20
  5. Step 5: Solve for x
    x = 38,110,674,723.20/223,932.44
  6. Step 6: Final answer
    x = 170,188.27

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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.