Home / 253,299.12-349,556.52-140,121.36

Finding the Fourth Proportional to 253,299.12, 349,556.52 and 140,121.36

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Solution

The fourth proportional to 253,299.12, 349,556.52 and 140,121.36 is: 193,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,299.12 : 349,556.52 = 140,121.36 : x
  2. Step 2: Convert to fraction form
    253,299.12/349,556.52 = 140,121.36/x
  3. Step 3: Cross multiply
    253,299.12x = 349,556.52 × 140,121.36
  4. Step 4: Simplify right side
    253,299.12x = 48,980,334,979.27
  5. Step 5: Solve for x
    x = 48,980,334,979.27/253,299.12
  6. Step 6: Final answer
    x = 193,369.54

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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.