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Finding the Fourth Proportional to 378,066.48, 567,099.72 and 111,806.26

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Solution

The fourth proportional to 378,066.48, 567,099.72 and 111,806.26 is: 167,709.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,066.48 : 567,099.72 = 111,806.26 : x
  2. Step 2: Convert to fraction form
    378,066.48/567,099.72 = 111,806.26/x
  3. Step 3: Cross multiply
    378,066.48x = 567,099.72 × 111,806.26
  4. Step 4: Simplify right side
    378,066.48x = 63,405,298,740.25
  5. Step 5: Solve for x
    x = 63,405,298,740.25/378,066.48
  6. Step 6: Final answer
    x = 167,709.39

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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.