Home / 279,118.73-385,175.62-158,271.05

Finding the Fourth Proportional to 279,118.73, 385,175.62 and 158,271.05

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Solution

The fourth proportional to 279,118.73, 385,175.62 and 158,271.05 is: 218,409.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,118.73 : 385,175.62 = 158,271.05 : x
  2. Step 2: Convert to fraction form
    279,118.73/385,175.62 = 158,271.05/x
  3. Step 3: Cross multiply
    279,118.73x = 385,175.62 × 158,271.05
  4. Step 4: Simplify right side
    279,118.73x = 60,962,150,972.58
  5. Step 5: Solve for x
    x = 60,962,150,972.58/279,118.73
  6. Step 6: Final answer
    x = 218,409.39

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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.