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Finding the Fourth Proportional to 331,029.23, 495,879.23 and 280,210.64

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Solution

The fourth proportional to 331,029.23, 495,879.23 and 280,210.64 is: 419,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,029.23 : 495,879.23 = 280,210.64 : x
  2. Step 2: Convert to fraction form
    331,029.23/495,879.23 = 280,210.64/x
  3. Step 3: Cross multiply
    331,029.23x = 495,879.23 × 280,210.64
  4. Step 4: Simplify right side
    331,029.23x = 138,950,634,622.14
  5. Step 5: Solve for x
    x = 138,950,634,622.14/331,029.23
  6. Step 6: Final answer
    x = 419,753.38

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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.