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Finding the Fourth Proportional to 393,032.54, 542,796.60 and 270,842.63

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Solution

The fourth proportional to 393,032.54, 542,796.60 and 270,842.63 is: 374,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,032.54 : 542,796.60 = 270,842.63 : x
  2. Step 2: Convert to fraction form
    393,032.54/542,796.60 = 270,842.63/x
  3. Step 3: Cross multiply
    393,032.54x = 542,796.60 × 270,842.63
  4. Step 4: Simplify right side
    393,032.54x = 147,012,458,699.06
  5. Step 5: Solve for x
    x = 147,012,458,699.06/393,032.54
  6. Step 6: Final answer
    x = 374,046.53

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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.