Home / 253,499.12-349,828.79-140,321.87

Finding the Fourth Proportional to 253,499.12, 349,828.79 and 140,321.87

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Solution

The fourth proportional to 253,499.12, 349,828.79 and 140,321.87 is: 193,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,499.12 : 349,828.79 = 140,321.87 : x
  2. Step 2: Convert to fraction form
    253,499.12/349,828.79 = 140,321.87/x
  3. Step 3: Cross multiply
    253,499.12x = 349,828.79 × 140,321.87
  4. Step 4: Simplify right side
    253,499.12x = 49,088,629,992.64
  5. Step 5: Solve for x
    x = 49,088,629,992.64/253,499.12
  6. Step 6: Final answer
    x = 193,644.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.