Home / 253,665.37-349,889.61-163,135.85

Finding the Fourth Proportional to 253,665.37, 349,889.61 and 163,135.85

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Solution

The fourth proportional to 253,665.37, 349,889.61 and 163,135.85 is: 225,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,665.37 : 349,889.61 = 163,135.85 : x
  2. Step 2: Convert to fraction form
    253,665.37/349,889.61 = 163,135.85/x
  3. Step 3: Cross multiply
    253,665.37x = 349,889.61 × 163,135.85
  4. Step 4: Simplify right side
    253,665.37x = 57,079,538,933.52
  5. Step 5: Solve for x
    x = 57,079,538,933.52/253,665.37
  6. Step 6: Final answer
    x = 225,019.04

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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.