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Finding the Fourth Proportional to 378,393.80, 567,592.79 and 112,156.65

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Solution

The fourth proportional to 378,393.80, 567,592.79 and 112,156.65 is: 168,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,393.80 : 567,592.79 = 112,156.65 : x
  2. Step 2: Convert to fraction form
    378,393.80/567,592.79 = 112,156.65/x
  3. Step 3: Cross multiply
    378,393.80x = 567,592.79 × 112,156.65
  4. Step 4: Simplify right side
    378,393.80x = 63,659,305,329.77
  5. Step 5: Solve for x
    x = 63,659,305,329.77/378,393.80
  6. Step 6: Final answer
    x = 168,235.60

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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.