Home / 258,619.56-356,892.66-145,443.12

Finding the Fourth Proportional to 258,619.56, 356,892.66 and 145,443.12

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Solution

The fourth proportional to 258,619.56, 356,892.66 and 145,443.12 is: 200,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,619.56 : 356,892.66 = 145,443.12 : x
  2. Step 2: Convert to fraction form
    258,619.56/356,892.66 = 145,443.12/x
  3. Step 3: Cross multiply
    258,619.56x = 356,892.66 × 145,443.12
  4. Step 4: Simplify right side
    258,619.56x = 51,907,581,975.50
  5. Step 5: Solve for x
    x = 51,907,581,975.50/258,619.56
  6. Step 6: Final answer
    x = 200,710.19

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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.