Home / 321,275.25-443,377.53-178,032.15

Finding the Fourth Proportional to 321,275.25, 443,377.53 and 178,032.15

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Solution

The fourth proportional to 321,275.25, 443,377.53 and 178,032.15 is: 245,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,275.25 : 443,377.53 = 178,032.15 : x
  2. Step 2: Convert to fraction form
    321,275.25/443,377.53 = 178,032.15/x
  3. Step 3: Cross multiply
    321,275.25x = 443,377.53 × 178,032.15
  4. Step 4: Simplify right side
    321,275.25x = 78,935,454,927.59
  5. Step 5: Solve for x
    x = 78,935,454,927.59/321,275.25
  6. Step 6: Final answer
    x = 245,694.17

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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.