Home / 279,441.88-385,629.84-152,118.42

Finding the Fourth Proportional to 279,441.88, 385,629.84 and 152,118.42

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Solution

The fourth proportional to 279,441.88, 385,629.84 and 152,118.42 is: 209,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,441.88 : 385,629.84 = 152,118.42 : x
  2. Step 2: Convert to fraction form
    279,441.88/385,629.84 = 152,118.42/x
  3. Step 3: Cross multiply
    279,441.88x = 385,629.84 × 152,118.42
  4. Step 4: Simplify right side
    279,441.88x = 58,661,401,965.65
  5. Step 5: Solve for x
    x = 58,661,401,965.65/279,441.88
  6. Step 6: Final answer
    x = 209,923.44

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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.