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Finding the Fourth Proportional to 291,265.88, 401,940.24 and 163,940.36

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Solution

The fourth proportional to 291,265.88, 401,940.24 and 163,940.36 is: 226,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,265.88 : 401,940.24 = 163,940.36 : x
  2. Step 2: Convert to fraction form
    291,265.88/401,940.24 = 163,940.36/x
  3. Step 3: Cross multiply
    291,265.88x = 401,940.24 × 163,940.36
  4. Step 4: Simplify right side
    291,265.88x = 65,894,227,644.09
  5. Step 5: Solve for x
    x = 65,894,227,644.09/291,265.88
  6. Step 6: Final answer
    x = 226,233.94

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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.