Home / 388,377.14-535,949.57-216,295.04

Finding the Fourth Proportional to 388,377.14, 535,949.57 and 216,295.04

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Solution

The fourth proportional to 388,377.14, 535,949.57 and 216,295.04 is: 298,481.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,377.14 : 535,949.57 = 216,295.04 : x
  2. Step 2: Convert to fraction form
    388,377.14/535,949.57 = 216,295.04/x
  3. Step 3: Cross multiply
    388,377.14x = 535,949.57 × 216,295.04
  4. Step 4: Simplify right side
    388,377.14x = 115,923,229,919.91
  5. Step 5: Solve for x
    x = 115,923,229,919.91/388,377.14
  6. Step 6: Final answer
    x = 298,481.09

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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.