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Finding the Fourth Proportional to 150,622.64, 207,843.80 and 90,191.80

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Solution

The fourth proportional to 150,622.64, 207,843.80 and 90,191.80 is: 124,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,622.64 : 207,843.80 = 90,191.80 : x
  2. Step 2: Convert to fraction form
    150,622.64/207,843.80 = 90,191.80/x
  3. Step 3: Cross multiply
    150,622.64x = 207,843.80 × 90,191.80
  4. Step 4: Simplify right side
    150,622.64x = 18,745,806,440.84
  5. Step 5: Solve for x
    x = 18,745,806,440.84/150,622.64
  6. Step 6: Final answer
    x = 124,455.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.