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Finding the Fourth Proportional to 252,603.63, 378,706.82 and 126,178.65

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Solution

The fourth proportional to 252,603.63, 378,706.82 and 126,178.65 is: 189,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,603.63 : 378,706.82 = 126,178.65 : x
  2. Step 2: Convert to fraction form
    252,603.63/378,706.82 = 126,178.65/x
  3. Step 3: Cross multiply
    252,603.63x = 378,706.82 × 126,178.65
  4. Step 4: Simplify right side
    252,603.63x = 47,784,714,662.50
  5. Step 5: Solve for x
    x = 47,784,714,662.50/252,603.63
  6. Step 6: Final answer
    x = 189,168.76

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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.