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Finding the Fourth Proportional to 253,964.29, 381,009.86 and 179,230.40

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Solution

The fourth proportional to 253,964.29, 381,009.86 and 179,230.40 is: 268,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,964.29 : 381,009.86 = 179,230.40 : x
  2. Step 2: Convert to fraction form
    253,964.29/381,009.86 = 179,230.40/x
  3. Step 3: Cross multiply
    253,964.29x = 381,009.86 × 179,230.40
  4. Step 4: Simplify right side
    253,964.29x = 68,288,549,611.74
  5. Step 5: Solve for x
    x = 68,288,549,611.74/253,964.29
  6. Step 6: Final answer
    x = 268,890.36

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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.