Home / 331,278.09-496,969.42-141,739.69

Finding the Fourth Proportional to 331,278.09, 496,969.42 and 141,739.69

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Solution

The fourth proportional to 331,278.09, 496,969.42 and 141,739.69 is: 212,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,278.09 : 496,969.42 = 141,739.69 : x
  2. Step 2: Convert to fraction form
    331,278.09/496,969.42 = 141,739.69/x
  3. Step 3: Cross multiply
    331,278.09x = 496,969.42 × 141,739.69
  4. Step 4: Simplify right side
    331,278.09x = 70,440,291,530.28
  5. Step 5: Solve for x
    x = 70,440,291,530.28/331,278.09
  6. Step 6: Final answer
    x = 212,631.91

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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.