Home / 281,945.08-389,089.20-154,619.56

Finding the Fourth Proportional to 281,945.08, 389,089.20 and 154,619.56

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Solution

The fourth proportional to 281,945.08, 389,089.20 and 154,619.56 is: 213,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,945.08 : 389,089.20 = 154,619.56 : x
  2. Step 2: Convert to fraction form
    281,945.08/389,089.20 = 154,619.56/x
  3. Step 3: Cross multiply
    281,945.08x = 389,089.20 × 154,619.56
  4. Step 4: Simplify right side
    281,945.08x = 60,160,800,904.75
  5. Step 5: Solve for x
    x = 60,160,800,904.75/281,945.08
  6. Step 6: Final answer
    x = 213,377.73

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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.