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Finding the Fourth Proportional to 360,169.95, 539,879.49 and 135,375.51

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Solution

The fourth proportional to 360,169.95, 539,879.49 and 135,375.51 is: 202,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,169.95 : 539,879.49 = 135,375.51 : x
  2. Step 2: Convert to fraction form
    360,169.95/539,879.49 = 135,375.51/x
  3. Step 3: Cross multiply
    360,169.95x = 539,879.49 × 135,375.51
  4. Step 4: Simplify right side
    360,169.95x = 73,086,461,297.29
  5. Step 5: Solve for x
    x = 73,086,461,297.29/360,169.95
  6. Step 6: Final answer
    x = 202,922.15

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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.