Home / 321,910.12-444,215.10-178,670.20

Finding the Fourth Proportional to 321,910.12, 444,215.10 and 178,670.20

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Solution

The fourth proportional to 321,910.12, 444,215.10 and 178,670.20 is: 246,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,910.12 : 444,215.10 = 178,670.20 : x
  2. Step 2: Convert to fraction form
    321,910.12/444,215.10 = 178,670.20/x
  3. Step 3: Cross multiply
    321,910.12x = 444,215.10 × 178,670.20
  4. Step 4: Simplify right side
    321,910.12x = 79,368,000,760.02
  5. Step 5: Solve for x
    x = 79,368,000,760.02/321,910.12
  6. Step 6: Final answer
    x = 246,553.29

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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.