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Finding the Fourth Proportional to 378,066.72, 567,100.08 and 111,806.50

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Solution

The fourth proportional to 378,066.72, 567,100.08 and 111,806.50 is: 167,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,066.72 : 567,100.08 = 111,806.50 : x
  2. Step 2: Convert to fraction form
    378,066.72/567,100.08 = 111,806.50/x
  3. Step 3: Cross multiply
    378,066.72x = 567,100.08 × 111,806.50
  4. Step 4: Simplify right side
    378,066.72x = 63,405,475,094.52
  5. Step 5: Solve for x
    x = 63,405,475,094.52/378,066.72
  6. Step 6: Final answer
    x = 167,709.75

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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.