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Finding the Fourth Proportional to 435,112.50, 652,668.78 and 154,640.82

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Solution

The fourth proportional to 435,112.50, 652,668.78 and 154,640.82 is: 231,961.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,112.50 : 652,668.78 = 154,640.82 : x
  2. Step 2: Convert to fraction form
    435,112.50/652,668.78 = 154,640.82/x
  3. Step 3: Cross multiply
    435,112.50x = 652,668.78 × 154,640.82
  4. Step 4: Simplify right side
    435,112.50x = 100,929,235,327.60
  5. Step 5: Solve for x
    x = 100,929,235,327.60/435,112.50
  6. Step 6: Final answer
    x = 231,961.24

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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.