Home / 258,436.97-356,675.06-145,259.72

Finding the Fourth Proportional to 258,436.97, 356,675.06 and 145,259.72

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Solution

The fourth proportional to 258,436.97, 356,675.06 and 145,259.72 is: 200,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,436.97 : 356,675.06 = 145,259.72 : x
  2. Step 2: Convert to fraction form
    258,436.97/356,675.06 = 145,259.72/x
  3. Step 3: Cross multiply
    258,436.97x = 356,675.06 × 145,259.72
  4. Step 4: Simplify right side
    258,436.97x = 51,810,519,346.58
  5. Step 5: Solve for x
    x = 51,810,519,346.58/258,436.97
  6. Step 6: Final answer
    x = 200,476.42

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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.