Home / 321,921.12-444,230.28-178,681.20

Finding the Fourth Proportional to 321,921.12, 444,230.28 and 178,681.20

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Solution

The fourth proportional to 321,921.12, 444,230.28 and 178,681.20 is: 246,568.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,921.12 : 444,230.28 = 178,681.20 : x
  2. Step 2: Convert to fraction form
    321,921.12/444,230.28 = 178,681.20/x
  3. Step 3: Cross multiply
    321,921.12x = 444,230.28 × 178,681.20
  4. Step 4: Simplify right side
    321,921.12x = 79,375,599,506.74
  5. Step 5: Solve for x
    x = 79,375,599,506.74/321,921.12
  6. Step 6: Final answer
    x = 246,568.47

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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.