Home / 305,943.86-422,032.53-284,294.42

Finding the Fourth Proportional to 305,943.86, 422,032.53 and 284,294.42

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Solution

The fourth proportional to 305,943.86, 422,032.53 and 284,294.42 is: 392,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,943.86 : 422,032.53 = 284,294.42 : x
  2. Step 2: Convert to fraction form
    305,943.86/422,032.53 = 284,294.42/x
  3. Step 3: Cross multiply
    305,943.86x = 422,032.53 × 284,294.42
  4. Step 4: Simplify right side
    305,943.86x = 119,981,493,337.48
  5. Step 5: Solve for x
    x = 119,981,493,337.48/305,943.86
  6. Step 6: Final answer
    x = 392,168.33

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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.