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Finding the Fourth Proportional to 275,397.76, 380,078.04 and 154,571.68

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Solution

The fourth proportional to 275,397.76, 380,078.04 and 154,571.68 is: 213,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,397.76 : 380,078.04 = 154,571.68 : x
  2. Step 2: Convert to fraction form
    275,397.76/380,078.04 = 154,571.68/x
  3. Step 3: Cross multiply
    275,397.76x = 380,078.04 × 154,571.68
  4. Step 4: Simplify right side
    275,397.76x = 58,749,301,173.91
  5. Step 5: Solve for x
    x = 58,749,301,173.91/275,397.76
  6. Step 6: Final answer
    x = 213,325.27

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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.