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Finding the Fourth Proportional to 665,883.52, 998,963.52 and 222,640

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Solution

The fourth proportional to 665,883.52, 998,963.52 and 222,640 is: 334,006.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,883.52 : 998,963.52 = 222,640 : x
  2. Step 2: Convert to fraction form
    665,883.52/998,963.52 = 222,640/x
  3. Step 3: Cross multiply
    665,883.52x = 998,963.52 × 222,640
  4. Step 4: Simplify right side
    665,883.52x = 222,409,238,092.80
  5. Step 5: Solve for x
    x = 222,409,238,092.80/665,883.52
  6. Step 6: Final answer
    x = 334,006.22

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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.