Home / 321,424.12-443,535.33-178,171.93

Finding the Fourth Proportional to 321,424.12, 443,535.33 and 178,171.93

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Solution

The fourth proportional to 321,424.12, 443,535.33 and 178,171.93 is: 245,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,424.12 : 443,535.33 = 178,171.93 : x
  2. Step 2: Convert to fraction form
    321,424.12/443,535.33 = 178,171.93/x
  3. Step 3: Cross multiply
    321,424.12x = 443,535.33 × 178,171.93
  4. Step 4: Simplify right side
    321,424.12x = 79,025,545,769.29
  5. Step 5: Solve for x
    x = 79,025,545,769.29/321,424.12
  6. Step 6: Final answer
    x = 245,860.66

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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.