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Finding the Fourth Proportional to 321,754.58, 444,021.38 and 178,514.28

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Solution

The fourth proportional to 321,754.58, 444,021.38 and 178,514.28 is: 246,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,754.58 : 444,021.38 = 178,514.28 : x
  2. Step 2: Convert to fraction form
    321,754.58/444,021.38 = 178,514.28/x
  3. Step 3: Cross multiply
    321,754.58x = 444,021.38 × 178,514.28
  4. Step 4: Simplify right side
    321,754.58x = 79,264,157,401.59
  5. Step 5: Solve for x
    x = 79,264,157,401.59/321,754.58
  6. Step 6: Final answer
    x = 246,349.74

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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.