Home / 354,112.36-530,971.71-140,863.46

Finding the Fourth Proportional to 354,112.36, 530,971.71 and 140,863.46

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Solution

The fourth proportional to 354,112.36, 530,971.71 and 140,863.46 is: 211,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,112.36 : 530,971.71 = 140,863.46 : x
  2. Step 2: Convert to fraction form
    354,112.36/530,971.71 = 140,863.46/x
  3. Step 3: Cross multiply
    354,112.36x = 530,971.71 × 140,863.46
  4. Step 4: Simplify right side
    354,112.36x = 74,794,509,049.62
  5. Step 5: Solve for x
    x = 74,794,509,049.62/354,112.36
  6. Step 6: Final answer
    x = 211,216.88

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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.