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Finding the Fourth Proportional to 378,223.07, 567,336.42 and 111,988.62

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Solution

The fourth proportional to 378,223.07, 567,336.42 and 111,988.62 is: 167,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,223.07 : 567,336.42 = 111,988.62 : x
  2. Step 2: Convert to fraction form
    378,223.07/567,336.42 = 111,988.62/x
  3. Step 3: Cross multiply
    378,223.07x = 567,336.42 × 111,988.62
  4. Step 4: Simplify right side
    378,223.07x = 63,535,222,751.54
  5. Step 5: Solve for x
    x = 63,535,222,751.54/378,223.07
  6. Step 6: Final answer
    x = 167,983.47

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1.5x scale

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.