Home / 321,371.16-443,518.74-178,176.12

Finding the Fourth Proportional to 321,371.16, 443,518.74 and 178,176.12

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Solution

The fourth proportional to 321,371.16, 443,518.74 and 178,176.12 is: 245,897.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,371.16 : 443,518.74 = 178,176.12 : x
  2. Step 2: Convert to fraction form
    321,371.16/443,518.74 = 178,176.12/x
  3. Step 3: Cross multiply
    321,371.16x = 443,518.74 × 178,176.12
  4. Step 4: Simplify right side
    321,371.16x = 79,024,448,240.49
  5. Step 5: Solve for x
    x = 79,024,448,240.49/321,371.16
  6. Step 6: Final answer
    x = 245,897.76

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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.