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Finding the Fourth Proportional to 285,572.96, 394,093 and 158,250.68

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Solution

The fourth proportional to 285,572.96, 394,093 and 158,250.68 is: 218,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,572.96 : 394,093 = 158,250.68 : x
  2. Step 2: Convert to fraction form
    285,572.96/394,093 = 158,250.68/x
  3. Step 3: Cross multiply
    285,572.96x = 394,093 × 158,250.68
  4. Step 4: Simplify right side
    285,572.96x = 62,365,485,233.24
  5. Step 5: Solve for x
    x = 62,365,485,233.24/285,572.96
  6. Step 6: Final answer
    x = 218,387.22

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1.5x scale

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.