Home / 354,108.24-530,689.32-129,257.28

Finding the Fourth Proportional to 354,108.24, 530,689.32 and 129,257.28

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Solution

The fourth proportional to 354,108.24, 530,689.32 and 129,257.28 is: 193,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,108.24 : 530,689.32 = 129,257.28 : x
  2. Step 2: Convert to fraction form
    354,108.24/530,689.32 = 129,257.28/x
  3. Step 3: Cross multiply
    354,108.24x = 530,689.32 × 129,257.28
  4. Step 4: Simplify right side
    354,108.24x = 68,595,458,028.25
  5. Step 5: Solve for x
    x = 68,595,458,028.25/354,108.24
  6. Step 6: Final answer
    x = 193,713.25

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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.