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Finding the Fourth Proportional to 378,230.70, 566,847.90 and 277,920.30

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Solution

The fourth proportional to 378,230.70, 566,847.90 and 277,920.30 is: 416,514.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,230.70 : 566,847.90 = 277,920.30 : x
  2. Step 2: Convert to fraction form
    378,230.70/566,847.90 = 277,920.30/x
  3. Step 3: Cross multiply
    378,230.70x = 566,847.90 × 277,920.30
  4. Step 4: Simplify right side
    378,230.70x = 157,538,538,422.37
  5. Step 5: Solve for x
    x = 157,538,538,422.37/378,230.70
  6. Step 6: Final answer
    x = 416,514.41

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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.