Home / 218,067.12-300,888.50-127,405.56

Finding the Fourth Proportional to 218,067.12, 300,888.50 and 127,405.56

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Solution

The fourth proportional to 218,067.12, 300,888.50 and 127,405.56 is: 175,793.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,067.12 : 300,888.50 = 127,405.56 : x
  2. Step 2: Convert to fraction form
    218,067.12/300,888.50 = 127,405.56/x
  3. Step 3: Cross multiply
    218,067.12x = 300,888.50 × 127,405.56
  4. Step 4: Simplify right side
    218,067.12x = 38,334,867,840.06
  5. Step 5: Solve for x
    x = 38,334,867,840.06/218,067.12
  6. Step 6: Final answer
    x = 175,793.89

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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.