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Finding the Fourth Proportional to 218,268.09, 301,251.30 and 136,634.34

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Solution

The fourth proportional to 218,268.09, 301,251.30 and 136,634.34 is: 188,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,268.09 : 301,251.30 = 136,634.34 : x
  2. Step 2: Convert to fraction form
    218,268.09/301,251.30 = 136,634.34/x
  3. Step 3: Cross multiply
    218,268.09x = 301,251.30 × 136,634.34
  4. Step 4: Simplify right side
    218,268.09x = 41,161,272,549.64
  5. Step 5: Solve for x
    x = 41,161,272,549.64/218,268.09
  6. Step 6: Final answer
    x = 188,581.27

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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.