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Finding the Fourth Proportional to 380,674.12, 570,967 and 100,213.24

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Solution

The fourth proportional to 380,674.12, 570,967 and 100,213.24 is: 150,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,674.12 : 570,967 = 100,213.24 : x
  2. Step 2: Convert to fraction form
    380,674.12/570,967 = 100,213.24/x
  3. Step 3: Cross multiply
    380,674.12x = 570,967 × 100,213.24
  4. Step 4: Simplify right side
    380,674.12x = 57,218,453,003.08
  5. Step 5: Solve for x
    x = 57,218,453,003.08/380,674.12
  6. Step 6: Final answer
    x = 150,308.23

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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.