Home / 258,327.21-356,480.40-143,605.59

Finding the Fourth Proportional to 258,327.21, 356,480.40 and 143,605.59

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Solution

The fourth proportional to 258,327.21, 356,480.40 and 143,605.59 is: 198,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,327.21 : 356,480.40 = 143,605.59 : x
  2. Step 2: Convert to fraction form
    258,327.21/356,480.40 = 143,605.59/x
  3. Step 3: Cross multiply
    258,327.21x = 356,480.40 × 143,605.59
  4. Step 4: Simplify right side
    258,327.21x = 51,192,578,165.44
  5. Step 5: Solve for x
    x = 51,192,578,165.44/258,327.21
  6. Step 6: Final answer
    x = 198,169.52

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1.5x scale

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.