Home / 321,350.58-443,456.10-178,107.54

Finding the Fourth Proportional to 321,350.58, 443,456.10 and 178,107.54

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Solution

The fourth proportional to 321,350.58, 443,456.10 and 178,107.54 is: 245,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,350.58 : 443,456.10 = 178,107.54 : x
  2. Step 2: Convert to fraction form
    321,350.58/443,456.10 = 178,107.54/x
  3. Step 3: Cross multiply
    321,350.58x = 443,456.10 × 178,107.54
  4. Step 4: Simplify right side
    321,350.58x = 78,982,875,068.99
  5. Step 5: Solve for x
    x = 78,982,875,068.99/321,350.58
  6. Step 6: Final answer
    x = 245,784.14

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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.