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Finding the Fourth Proportional to 276,046.98, 380,959.83 and 153,552.30

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Solution

The fourth proportional to 276,046.98, 380,959.83 and 153,552.30 is: 211,910.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,046.98 : 380,959.83 = 153,552.30 : x
  2. Step 2: Convert to fraction form
    276,046.98/380,959.83 = 153,552.30/x
  3. Step 3: Cross multiply
    276,046.98x = 380,959.83 × 153,552.30
  4. Step 4: Simplify right side
    276,046.98x = 58,497,258,104.11
  5. Step 5: Solve for x
    x = 58,497,258,104.11/276,046.98
  6. Step 6: Final answer
    x = 211,910.52

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1.5x scale

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.