Home / 438,857.28-605,625.21-245,268.18

Finding the Fourth Proportional to 438,857.28, 605,625.21 and 245,268.18

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Solution

The fourth proportional to 438,857.28, 605,625.21 and 245,268.18 is: 338,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,857.28 : 605,625.21 = 245,268.18 : x
  2. Step 2: Convert to fraction form
    438,857.28/605,625.21 = 245,268.18/x
  3. Step 3: Cross multiply
    438,857.28x = 605,625.21 × 245,268.18
  4. Step 4: Simplify right side
    438,857.28x = 148,540,593,018.82
  5. Step 5: Solve for x
    x = 148,540,593,018.82/438,857.28
  6. Step 6: Final answer
    x = 338,471.30

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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.