Home / 321,351.16-443,491.14-178,156.12

Finding the Fourth Proportional to 321,351.16, 443,491.14 and 178,156.12

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Solution

The fourth proportional to 321,351.16, 443,491.14 and 178,156.12 is: 245,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,351.16 : 443,491.14 = 178,156.12 : x
  2. Step 2: Convert to fraction form
    321,351.16/443,491.14 = 178,156.12/x
  3. Step 3: Cross multiply
    321,351.16x = 443,491.14 × 178,156.12
  4. Step 4: Simplify right side
    321,351.16x = 79,010,660,756.78
  5. Step 5: Solve for x
    x = 79,010,660,756.78/321,351.16
  6. Step 6: Final answer
    x = 245,870.16

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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.