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Finding the Fourth Proportional to 143,278.13, 214,917.21 and 44,782.13

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Solution

The fourth proportional to 143,278.13, 214,917.21 and 44,782.13 is: 67,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,278.13 : 214,917.21 = 44,782.13 : x
  2. Step 2: Convert to fraction form
    143,278.13/214,917.21 = 44,782.13/x
  3. Step 3: Cross multiply
    143,278.13x = 214,917.21 × 44,782.13
  4. Step 4: Simplify right side
    143,278.13x = 9,624,449,362.87
  5. Step 5: Solve for x
    x = 9,624,449,362.87/143,278.13
  6. Step 6: Final answer
    x = 67,173.19

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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.