Home / 231,529.29-319,409.03-135,992.91

Finding the Fourth Proportional to 231,529.29, 319,409.03 and 135,992.91

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Solution

The fourth proportional to 231,529.29, 319,409.03 and 135,992.91 is: 187,610.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,529.29 : 319,409.03 = 135,992.91 : x
  2. Step 2: Convert to fraction form
    231,529.29/319,409.03 = 135,992.91/x
  3. Step 3: Cross multiply
    231,529.29x = 319,409.03 × 135,992.91
  4. Step 4: Simplify right side
    231,529.29x = 43,437,362,790.01
  5. Step 5: Solve for x
    x = 43,437,362,790.01/231,529.29
  6. Step 6: Final answer
    x = 187,610.66

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1.5x scale

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.