Home / 211,024.54-291,213.09-120,380.34

Finding the Fourth Proportional to 211,024.54, 291,213.09 and 120,380.34

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Solution

The fourth proportional to 211,024.54, 291,213.09 and 120,380.34 is: 166,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,024.54 : 291,213.09 = 120,380.34 : x
  2. Step 2: Convert to fraction form
    211,024.54/291,213.09 = 120,380.34/x
  3. Step 3: Cross multiply
    211,024.54x = 291,213.09 × 120,380.34
  4. Step 4: Simplify right side
    211,024.54x = 35,056,331,878.70
  5. Step 5: Solve for x
    x = 35,056,331,878.70/211,024.54
  6. Step 6: Final answer
    x = 166,124.43

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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.