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Finding the Fourth Proportional to 393,652.79, 543,053.75 and 232,399.81

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Solution

The fourth proportional to 393,652.79, 543,053.75 and 232,399.81 is: 320,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,652.79 : 543,053.75 = 232,399.81 : x
  2. Step 2: Convert to fraction form
    393,652.79/543,053.75 = 232,399.81/x
  3. Step 3: Cross multiply
    393,652.79x = 543,053.75 × 232,399.81
  4. Step 4: Simplify right side
    393,652.79x = 126,205,589,143.86
  5. Step 5: Solve for x
    x = 126,205,589,143.86/393,652.79
  6. Step 6: Final answer
    x = 320,601.28

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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.