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Finding the Fourth Proportional to 150,197.71, 207,278.09 and 82,214.72

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Solution

The fourth proportional to 150,197.71, 207,278.09 and 82,214.72 is: 113,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,197.71 : 207,278.09 = 82,214.72 : x
  2. Step 2: Convert to fraction form
    150,197.71/207,278.09 = 82,214.72/x
  3. Step 3: Cross multiply
    150,197.71x = 207,278.09 × 82,214.72
  4. Step 4: Simplify right side
    150,197.71x = 17,041,310,855.22
  5. Step 5: Solve for x
    x = 17,041,310,855.22/150,197.71
  6. Step 6: Final answer
    x = 113,459.19

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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.