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Finding the Fourth Proportional to 378,350.39, 567,354.79 and 108,416.78

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Solution

The fourth proportional to 378,350.39, 567,354.79 and 108,416.78 is: 162,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,350.39 : 567,354.79 = 108,416.78 : x
  2. Step 2: Convert to fraction form
    378,350.39/567,354.79 = 108,416.78/x
  3. Step 3: Cross multiply
    378,350.39x = 567,354.79 × 108,416.78
  4. Step 4: Simplify right side
    378,350.39x = 61,510,778,907.29
  5. Step 5: Solve for x
    x = 61,510,778,907.29/378,350.39
  6. Step 6: Final answer
    x = 162,576.23

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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.