Home / 275,787.20-380,586.36-153,279.56

Finding the Fourth Proportional to 275,787.20, 380,586.36 and 153,279.56

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Solution

The fourth proportional to 275,787.20, 380,586.36 and 153,279.56 is: 211,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,787.20 : 380,586.36 = 153,279.56 : x
  2. Step 2: Convert to fraction form
    275,787.20/380,586.36 = 153,279.56/x
  3. Step 3: Cross multiply
    275,787.20x = 380,586.36 × 153,279.56
  4. Step 4: Simplify right side
    275,787.20x = 58,336,109,802.80
  5. Step 5: Solve for x
    x = 58,336,109,802.80/275,787.20
  6. Step 6: Final answer
    x = 211,525.81

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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.