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Finding the Fourth Proportional to 100,346.68, 150,519.66 and 30,231.64

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Solution

The fourth proportional to 100,346.68, 150,519.66 and 30,231.64 is: 45,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,346.68 : 150,519.66 = 30,231.64 : x
  2. Step 2: Convert to fraction form
    100,346.68/150,519.66 = 30,231.64/x
  3. Step 3: Cross multiply
    100,346.68x = 150,519.66 × 30,231.64
  4. Step 4: Simplify right side
    100,346.68x = 4,550,456,174.04
  5. Step 5: Solve for x
    x = 4,550,456,174.04/100,346.68
  6. Step 6: Final answer
    x = 45,347.35

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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.