Home / 321,324.76-443,428.16-178,106.32

Finding the Fourth Proportional to 321,324.76, 443,428.16 and 178,106.32

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Solution

The fourth proportional to 321,324.76, 443,428.16 and 178,106.32 is: 245,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,324.76 : 443,428.16 = 178,106.32 : x
  2. Step 2: Convert to fraction form
    321,324.76/443,428.16 = 178,106.32/x
  3. Step 3: Cross multiply
    321,324.76x = 443,428.16 × 178,106.32
  4. Step 4: Simplify right side
    321,324.76x = 78,977,357,761.97
  5. Step 5: Solve for x
    x = 78,977,357,761.97/321,324.76
  6. Step 6: Final answer
    x = 245,786.72

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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.