Home / 231,480.37-319,576.76-154,016.83

Finding the Fourth Proportional to 231,480.37, 319,576.76 and 154,016.83

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Solution

The fourth proportional to 231,480.37, 319,576.76 and 154,016.83 is: 212,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,480.37 : 319,576.76 = 154,016.83 : x
  2. Step 2: Convert to fraction form
    231,480.37/319,576.76 = 154,016.83/x
  3. Step 3: Cross multiply
    231,480.37x = 319,576.76 × 154,016.83
  4. Step 4: Simplify right side
    231,480.37x = 49,220,199,516.87
  5. Step 5: Solve for x
    x = 49,220,199,516.87/231,480.37
  6. Step 6: Final answer
    x = 212,632.28

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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.