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Finding the Fourth Proportional to 100,353.96, 150,502.86 and 30,223.08

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Solution

The fourth proportional to 100,353.96, 150,502.86 and 30,223.08 is: 45,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,353.96 : 150,502.86 = 30,223.08 : x
  2. Step 2: Convert to fraction form
    100,353.96/150,502.86 = 30,223.08/x
  3. Step 3: Cross multiply
    100,353.96x = 150,502.86 × 30,223.08
  4. Step 4: Simplify right side
    100,353.96x = 4,548,659,978.01
  5. Step 5: Solve for x
    x = 4,548,659,978.01/100,353.96
  6. Step 6: Final answer
    x = 45,326.16

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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.