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Finding the Fourth Proportional to 150,539.85, 225,809.78 and 100,643.85

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Solution

The fourth proportional to 150,539.85, 225,809.78 and 100,643.85 is: 150,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,539.85 : 225,809.78 = 100,643.85 : x
  2. Step 2: Convert to fraction form
    150,539.85/225,809.78 = 100,643.85/x
  3. Step 3: Cross multiply
    150,539.85x = 225,809.78 × 100,643.85
  4. Step 4: Simplify right side
    150,539.85x = 22,726,365,123.63
  5. Step 5: Solve for x
    x = 22,726,365,123.63/150,539.85
  6. Step 6: Final answer
    x = 150,965.78

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1.5x scale

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.