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Finding the Fourth Proportional to 378,224.58, 567,338.70 and 111,990.12

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Solution

The fourth proportional to 378,224.58, 567,338.70 and 111,990.12 is: 167,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,224.58 : 567,338.70 = 111,990.12 : x
  2. Step 2: Convert to fraction form
    378,224.58/567,338.70 = 111,990.12/x
  3. Step 3: Cross multiply
    378,224.58x = 567,338.70 × 111,990.12
  4. Step 4: Simplify right side
    378,224.58x = 63,536,329,093.64
  5. Step 5: Solve for x
    x = 63,536,329,093.64/378,224.58
  6. Step 6: Final answer
    x = 167,985.72

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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.