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Finding the Fourth Proportional to 100,330.41, 150,503.82 and 50,384.79

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Solution

The fourth proportional to 100,330.41, 150,503.82 and 50,384.79 is: 75,581.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,330.41 : 150,503.82 = 50,384.79 : x
  2. Step 2: Convert to fraction form
    100,330.41/150,503.82 = 50,384.79/x
  3. Step 3: Cross multiply
    100,330.41x = 150,503.82 × 50,384.79
  4. Step 4: Simplify right side
    100,330.41x = 7,583,103,364.90
  5. Step 5: Solve for x
    x = 7,583,103,364.90/100,330.41
  6. Step 6: Final answer
    x = 75,581.31

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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.