Home / 285,306.86-393,723.45-157,982.46

Finding the Fourth Proportional to 285,306.86, 393,723.45 and 157,982.46

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Solution

The fourth proportional to 285,306.86, 393,723.45 and 157,982.46 is: 218,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,306.86 : 393,723.45 = 157,982.46 : x
  2. Step 2: Convert to fraction form
    285,306.86/393,723.45 = 157,982.46/x
  3. Step 3: Cross multiply
    285,306.86x = 393,723.45 × 157,982.46
  4. Step 4: Simplify right side
    285,306.86x = 62,201,399,190.69
  5. Step 5: Solve for x
    x = 62,201,399,190.69/285,306.86
  6. Step 6: Final answer
    x = 218,015.79

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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.