Home / 203,365.20-305,034.41-70,247.36

Finding the Fourth Proportional to 203,365.20, 305,034.41 and 70,247.36

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Solution

The fourth proportional to 203,365.20, 305,034.41 and 70,247.36 is: 105,366.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,365.20 : 305,034.41 = 70,247.36 : x
  2. Step 2: Convert to fraction form
    203,365.20/305,034.41 = 70,247.36/x
  3. Step 3: Cross multiply
    203,365.20x = 305,034.41 × 70,247.36
  4. Step 4: Simplify right side
    203,365.20x = 21,427,862,011.66
  5. Step 5: Solve for x
    x = 21,427,862,011.66/203,365.20
  6. Step 6: Final answer
    x = 105,366.41

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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.