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Finding the Fourth Proportional to 239,711.94, 330,662.80 and 153,640.26

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Solution

The fourth proportional to 239,711.94, 330,662.80 and 153,640.26 is: 211,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,711.94 : 330,662.80 = 153,640.26 : x
  2. Step 2: Convert to fraction form
    239,711.94/330,662.80 = 153,640.26/x
  3. Step 3: Cross multiply
    239,711.94x = 330,662.80 × 153,640.26
  4. Step 4: Simplify right side
    239,711.94x = 50,803,118,564.33
  5. Step 5: Solve for x
    x = 50,803,118,564.33/239,711.94
  6. Step 6: Final answer
    x = 211,934.03

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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.