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Finding the Fourth Proportional to 211,838.88, 292,344.48 and 122,414.88

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Solution

The fourth proportional to 211,838.88, 292,344.48 and 122,414.88 is: 168,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,838.88 : 292,344.48 = 122,414.88 : x
  2. Step 2: Convert to fraction form
    211,838.88/292,344.48 = 122,414.88/x
  3. Step 3: Cross multiply
    211,838.88x = 292,344.48 × 122,414.88
  4. Step 4: Simplify right side
    211,838.88x = 35,787,314,437.86
  5. Step 5: Solve for x
    x = 35,787,314,437.86/211,838.88
  6. Step 6: Final answer
    x = 168,936.48

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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.