Home / 281,811.68-388,903.20-154,484.48

Finding the Fourth Proportional to 281,811.68, 388,903.20 and 154,484.48

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Solution

The fourth proportional to 281,811.68, 388,903.20 and 154,484.48 is: 213,190.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,811.68 : 388,903.20 = 154,484.48 : x
  2. Step 2: Convert to fraction form
    281,811.68/388,903.20 = 154,484.48/x
  3. Step 3: Cross multiply
    281,811.68x = 388,903.20 × 154,484.48
  4. Step 4: Simplify right side
    281,811.68x = 60,079,508,622.34
  5. Step 5: Solve for x
    x = 60,079,508,622.34/281,811.68
  6. Step 6: Final answer
    x = 213,190.27

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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.