Home / 281,839.50-389,142.63-181,412.46

Finding the Fourth Proportional to 281,839.50, 389,142.63 and 181,412.46

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Solution

The fourth proportional to 281,839.50, 389,142.63 and 181,412.46 is: 250,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,839.50 : 389,142.63 = 181,412.46 : x
  2. Step 2: Convert to fraction form
    281,839.50/389,142.63 = 181,412.46/x
  3. Step 3: Cross multiply
    281,839.50x = 389,142.63 × 181,412.46
  4. Step 4: Simplify right side
    281,839.50x = 70,595,321,799.17
  5. Step 5: Solve for x
    x = 70,595,321,799.17/281,839.50
  6. Step 6: Final answer
    x = 250,480.58

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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.