Home / 203,218.14-305,016.35-103,453.02

Finding the Fourth Proportional to 203,218.14, 305,016.35 and 103,453.02

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Solution

The fourth proportional to 203,218.14, 305,016.35 and 103,453.02 is: 155,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,218.14 : 305,016.35 = 103,453.02 : x
  2. Step 2: Convert to fraction form
    203,218.14/305,016.35 = 103,453.02/x
  3. Step 3: Cross multiply
    203,218.14x = 305,016.35 × 103,453.02
  4. Step 4: Simplify right side
    203,218.14x = 31,554,863,959.32
  5. Step 5: Solve for x
    x = 31,554,863,959.32/203,218.14
  6. Step 6: Final answer
    x = 155,275.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.