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Finding the Fourth Proportional to 378,075.75, 567,196.67 and 111,815.51

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Solution

The fourth proportional to 378,075.75, 567,196.67 and 111,815.51 is: 167,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,075.75 : 567,196.67 = 111,815.51 : x
  2. Step 2: Convert to fraction form
    378,075.75/567,196.67 = 111,815.51/x
  3. Step 3: Cross multiply
    378,075.75x = 567,196.67 × 111,815.51
  4. Step 4: Simplify right side
    378,075.75x = 63,421,384,007.70
  5. Step 5: Solve for x
    x = 63,421,384,007.70/378,075.75
  6. Step 6: Final answer
    x = 167,747.82

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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.