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Finding the Fourth Proportional to 321,754.56, 444,021.35 and 178,514.26

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Solution

The fourth proportional to 321,754.56, 444,021.35 and 178,514.26 is: 246,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,754.56 : 444,021.35 = 178,514.26 : x
  2. Step 2: Convert to fraction form
    321,754.56/444,021.35 = 178,514.26/x
  3. Step 3: Cross multiply
    321,754.56x = 444,021.35 × 178,514.26
  4. Step 4: Simplify right side
    321,754.56x = 79,264,140,716.83
  5. Step 5: Solve for x
    x = 79,264,140,716.83/321,754.56
  6. Step 6: Final answer
    x = 246,349.70

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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.