Home / 321,346.07-443,449.89-178,103.04

Finding the Fourth Proportional to 321,346.07, 443,449.89 and 178,103.04

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Solution

The fourth proportional to 321,346.07, 443,449.89 and 178,103.04 is: 245,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,346.07 : 443,449.89 = 178,103.04 : x
  2. Step 2: Convert to fraction form
    321,346.07/443,449.89 = 178,103.04/x
  3. Step 3: Cross multiply
    321,346.07x = 443,449.89 × 178,103.04
  4. Step 4: Simplify right side
    321,346.07x = 78,979,773,496.67
  5. Step 5: Solve for x
    x = 78,979,773,496.67/321,346.07
  6. Step 6: Final answer
    x = 245,777.94

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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.