Home / 275,983.20-380,852.28-153,470.70

Finding the Fourth Proportional to 275,983.20, 380,852.28 and 153,470.70

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Solution

The fourth proportional to 275,983.20, 380,852.28 and 153,470.70 is: 211,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,983.20 : 380,852.28 = 153,470.70 : x
  2. Step 2: Convert to fraction form
    275,983.20/380,852.28 = 153,470.70/x
  3. Step 3: Cross multiply
    275,983.20x = 380,852.28 × 153,470.70
  4. Step 4: Simplify right side
    275,983.20x = 58,449,666,008.20
  5. Step 5: Solve for x
    x = 58,449,666,008.20/275,983.20
  6. Step 6: Final answer
    x = 211,787.04

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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.