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Finding the Fourth Proportional to 100,402.49, 150,503.90 and 50,329.73

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Solution

The fourth proportional to 100,402.49, 150,503.90 and 50,329.73 is: 75,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,402.49 : 150,503.90 = 50,329.73 : x
  2. Step 2: Convert to fraction form
    100,402.49/150,503.90 = 50,329.73/x
  3. Step 3: Cross multiply
    100,402.49x = 150,503.90 × 50,329.73
  4. Step 4: Simplify right side
    100,402.49x = 7,574,820,775.56
  5. Step 5: Solve for x
    x = 7,574,820,775.56/100,402.49
  6. Step 6: Final answer
    x = 75,444.55

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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.