Home / 321,915.12-444,222-178,675.20

Finding the Fourth Proportional to 321,915.12, 444,222 and 178,675.20

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Solution

The fourth proportional to 321,915.12, 444,222 and 178,675.20 is: 246,560.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,915.12 : 444,222 = 178,675.20 : x
  2. Step 2: Convert to fraction form
    321,915.12/444,222 = 178,675.20/x
  3. Step 3: Cross multiply
    321,915.12x = 444,222 × 178,675.20
  4. Step 4: Simplify right side
    321,915.12x = 79,371,454,694.40
  5. Step 5: Solve for x
    x = 79,371,454,694.40/321,915.12
  6. Step 6: Final answer
    x = 246,560.19

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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.