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Finding the Fourth Proportional to 258,540.94, 356,743.02 and 143,804.62

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Solution

The fourth proportional to 258,540.94, 356,743.02 and 143,804.62 is: 198,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,540.94 : 356,743.02 = 143,804.62 : x
  2. Step 2: Convert to fraction form
    258,540.94/356,743.02 = 143,804.62/x
  3. Step 3: Cross multiply
    258,540.94x = 356,743.02 × 143,804.62
  4. Step 4: Simplify right side
    258,540.94x = 51,301,294,428.75
  5. Step 5: Solve for x
    x = 51,301,294,428.75/258,540.94
  6. Step 6: Final answer
    x = 198,426.19

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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.