Home / 281,839.75-389,142.98-181,412.71

Finding the Fourth Proportional to 281,839.75, 389,142.98 and 181,412.71

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Solution

The fourth proportional to 281,839.75, 389,142.98 and 181,412.71 is: 250,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,839.75 : 389,142.98 = 181,412.71 : x
  2. Step 2: Convert to fraction form
    281,839.75/389,142.98 = 181,412.71/x
  3. Step 3: Cross multiply
    281,839.75x = 389,142.98 × 181,412.71
  4. Step 4: Simplify right side
    281,839.75x = 70,595,482,579.28
  5. Step 5: Solve for x
    x = 70,595,482,579.28/281,839.75
  6. Step 6: Final answer
    x = 250,480.93

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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.