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Finding the Fourth Proportional to 275,765.35, 380,535.43 and 154,883.02

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Solution

The fourth proportional to 275,765.35, 380,535.43 and 154,883.02 is: 213,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,765.35 : 380,535.43 = 154,883.02 : x
  2. Step 2: Convert to fraction form
    275,765.35/380,535.43 = 154,883.02/x
  3. Step 3: Cross multiply
    275,765.35x = 380,535.43 × 154,883.02
  4. Step 4: Simplify right side
    275,765.35x = 58,938,476,615.40
  5. Step 5: Solve for x
    x = 58,938,476,615.40/275,765.35
  6. Step 6: Final answer
    x = 213,726.91

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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.