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Finding the Fourth Proportional to 378,008.37, 567,012.96 and 354,913.65

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Solution

The fourth proportional to 378,008.37, 567,012.96 and 354,913.65 is: 532,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,008.37 : 567,012.96 = 354,913.65 : x
  2. Step 2: Convert to fraction form
    378,008.37/567,012.96 = 354,913.65/x
  3. Step 3: Cross multiply
    378,008.37x = 567,012.96 × 354,913.65
  4. Step 4: Simplify right side
    378,008.37x = 201,240,639,230.90
  5. Step 5: Solve for x
    x = 201,240,639,230.90/378,008.37
  6. Step 6: Final answer
    x = 532,370.86

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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.