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Finding the Fourth Proportional to 100,288.20, 150,410.70 and 44,128.20

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Solution

The fourth proportional to 100,288.20, 150,410.70 and 44,128.20 is: 66,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,288.20 : 150,410.70 = 44,128.20 : x
  2. Step 2: Convert to fraction form
    100,288.20/150,410.70 = 44,128.20/x
  3. Step 3: Cross multiply
    100,288.20x = 150,410.70 × 44,128.20
  4. Step 4: Simplify right side
    100,288.20x = 6,637,353,451.74
  5. Step 5: Solve for x
    x = 6,637,353,451.74/100,288.20
  6. Step 6: Final answer
    x = 66,182.80

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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.