Home / 238,965.28-358,447-89,243.26

Finding the Fourth Proportional to 238,965.28, 358,447 and 89,243.26

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Solution

The fourth proportional to 238,965.28, 358,447 and 89,243.26 is: 133,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,965.28 : 358,447 = 89,243.26 : x
  2. Step 2: Convert to fraction form
    238,965.28/358,447 = 89,243.26/x
  3. Step 3: Cross multiply
    238,965.28x = 358,447 × 89,243.26
  4. Step 4: Simplify right side
    238,965.28x = 31,988,978,817.22
  5. Step 5: Solve for x
    x = 31,988,978,817.22/238,965.28
  6. Step 6: Final answer
    x = 133,864.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.