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Finding the Fourth Proportional to 665,851.68, 998,570.16 and 222,516

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Solution

The fourth proportional to 665,851.68, 998,570.16 and 222,516 is: 333,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,851.68 : 998,570.16 = 222,516 : x
  2. Step 2: Convert to fraction form
    665,851.68/998,570.16 = 222,516/x
  3. Step 3: Cross multiply
    665,851.68x = 998,570.16 × 222,516
  4. Step 4: Simplify right side
    665,851.68x = 222,197,837,722.56
  5. Step 5: Solve for x
    x = 222,197,837,722.56/665,851.68
  6. Step 6: Final answer
    x = 333,704.70

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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.