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Finding the Fourth Proportional to 393,028.96, 542,226 and 241,863.52

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Solution

The fourth proportional to 393,028.96, 542,226 and 241,863.52 is: 333,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,028.96 : 542,226 = 241,863.52 : x
  2. Step 2: Convert to fraction form
    393,028.96/542,226 = 241,863.52/x
  3. Step 3: Cross multiply
    393,028.96x = 542,226 × 241,863.52
  4. Step 4: Simplify right side
    393,028.96x = 131,144,688,995.52
  5. Step 5: Solve for x
    x = 131,144,688,995.52/393,028.96
  6. Step 6: Final answer
    x = 333,676.91

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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.