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Finding the Fourth Proportional to 276,818.64, 381,989.52 and 163,619.52

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Solution

The fourth proportional to 276,818.64, 381,989.52 and 163,619.52 is: 225,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,818.64 : 381,989.52 = 163,619.52 : x
  2. Step 2: Convert to fraction form
    276,818.64/381,989.52 = 163,619.52/x
  3. Step 3: Cross multiply
    276,818.64x = 381,989.52 × 163,619.52
  4. Step 4: Simplify right side
    276,818.64x = 62,500,941,907.43
  5. Step 5: Solve for x
    x = 62,500,941,907.43/276,818.64
  6. Step 6: Final answer
    x = 225,783.00

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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.