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Finding the Fourth Proportional to 276,901.94, 415,352.87 and 66,539.88

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Solution

The fourth proportional to 276,901.94, 415,352.87 and 66,539.88 is: 99,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,901.94 : 415,352.87 = 66,539.88 : x
  2. Step 2: Convert to fraction form
    276,901.94/415,352.87 = 66,539.88/x
  3. Step 3: Cross multiply
    276,901.94x = 415,352.87 × 66,539.88
  4. Step 4: Simplify right side
    276,901.94x = 27,637,530,044.28
  5. Step 5: Solve for x
    x = 27,637,530,044.28/276,901.94
  6. Step 6: Final answer
    x = 99,809.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.