Home / 395,212.25-592,912.71-128,973.26

Finding the Fourth Proportional to 395,212.25, 592,912.71 and 128,973.26

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Solution

The fourth proportional to 395,212.25, 592,912.71 and 128,973.26 is: 193,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,212.25 : 592,912.71 = 128,973.26 : x
  2. Step 2: Convert to fraction form
    395,212.25/592,912.71 = 128,973.26/x
  3. Step 3: Cross multiply
    395,212.25x = 592,912.71 × 128,973.26
  4. Step 4: Simplify right side
    395,212.25x = 76,469,886,586.42
  5. Step 5: Solve for x
    x = 76,469,886,586.42/395,212.25
  6. Step 6: Final answer
    x = 193,490.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.