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Finding the Fourth Proportional to 275,903.80, 380,796.78 and 162,719.80

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Solution

The fourth proportional to 275,903.80, 380,796.78 and 162,719.80 is: 224,582.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,903.80 : 380,796.78 = 162,719.80 : x
  2. Step 2: Convert to fraction form
    275,903.80/380,796.78 = 162,719.80/x
  3. Step 3: Cross multiply
    275,903.80x = 380,796.78 × 162,719.80
  4. Step 4: Simplify right side
    275,903.80x = 61,963,175,882.24
  5. Step 5: Solve for x
    x = 61,963,175,882.24/275,903.80
  6. Step 6: Final answer
    x = 224,582.54

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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.