Home / 258,390.03-356,539.18-147,991.47

Finding the Fourth Proportional to 258,390.03, 356,539.18 and 147,991.47

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Solution

The fourth proportional to 258,390.03, 356,539.18 and 147,991.47 is: 204,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,390.03 : 356,539.18 = 147,991.47 : x
  2. Step 2: Convert to fraction form
    258,390.03/356,539.18 = 147,991.47/x
  3. Step 3: Cross multiply
    258,390.03x = 356,539.18 × 147,991.47
  4. Step 4: Simplify right side
    258,390.03x = 52,764,757,300.63
  5. Step 5: Solve for x
    x = 52,764,757,300.63/258,390.03
  6. Step 6: Final answer
    x = 204,205.85

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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.