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Finding the Fourth Proportional to 211,027.52, 291,245.72 and 120,362.72

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Solution

The fourth proportional to 211,027.52, 291,245.72 and 120,362.72 is: 166,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,027.52 : 291,245.72 = 120,362.72 : x
  2. Step 2: Convert to fraction form
    211,027.52/291,245.72 = 120,362.72/x
  3. Step 3: Cross multiply
    211,027.52x = 291,245.72 × 120,362.72
  4. Step 4: Simplify right side
    211,027.52x = 35,055,124,989.52
  5. Step 5: Solve for x
    x = 35,055,124,989.52/211,027.52
  6. Step 6: Final answer
    x = 166,116.37

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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.