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Finding the Fourth Proportional to 100,247.45, 150,212.97 and 36,980.51

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Solution

The fourth proportional to 100,247.45, 150,212.97 and 36,980.51 is: 55,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,247.45 : 150,212.97 = 36,980.51 : x
  2. Step 2: Convert to fraction form
    100,247.45/150,212.97 = 36,980.51/x
  3. Step 3: Cross multiply
    100,247.45x = 150,212.97 × 36,980.51
  4. Step 4: Simplify right side
    100,247.45x = 5,554,952,239.21
  5. Step 5: Solve for x
    x = 5,554,952,239.21/100,247.45
  6. Step 6: Final answer
    x = 55,412.40

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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.