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Finding the Fourth Proportional to 377,092.86, 520,383.56 and 280,727.26

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Solution

The fourth proportional to 377,092.86, 520,383.56 and 280,727.26 is: 387,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,092.86 : 520,383.56 = 280,727.26 : x
  2. Step 2: Convert to fraction form
    377,092.86/520,383.56 = 280,727.26/x
  3. Step 3: Cross multiply
    377,092.86x = 520,383.56 × 280,727.26
  4. Step 4: Simplify right side
    377,092.86x = 146,085,850,348.71
  5. Step 5: Solve for x
    x = 146,085,850,348.71/377,092.86
  6. Step 6: Final answer
    x = 387,400.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.