Home / 279,020.24-418,467.24-79,336.28

Finding the Fourth Proportional to 279,020.24, 418,467.24 and 79,336.28

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Solution

The fourth proportional to 279,020.24, 418,467.24 and 79,336.28 is: 118,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,020.24 : 418,467.24 = 79,336.28 : x
  2. Step 2: Convert to fraction form
    279,020.24/418,467.24 = 79,336.28/x
  3. Step 3: Cross multiply
    279,020.24x = 418,467.24 × 79,336.28
  4. Step 4: Simplify right side
    279,020.24x = 33,199,634,123.47
  5. Step 5: Solve for x
    x = 33,199,634,123.47/279,020.24
  6. Step 6: Final answer
    x = 118,986.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.