Home / 279,436.03-384,767.78-210,625.49

Finding the Fourth Proportional to 279,436.03, 384,767.78 and 210,625.49

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Solution

The fourth proportional to 279,436.03, 384,767.78 and 210,625.49 is: 290,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,436.03 : 384,767.78 = 210,625.49 : x
  2. Step 2: Convert to fraction form
    279,436.03/384,767.78 = 210,625.49/x
  3. Step 3: Cross multiply
    279,436.03x = 384,767.78 × 210,625.49
  4. Step 4: Simplify right side
    279,436.03x = 81,041,902,107.50
  5. Step 5: Solve for x
    x = 81,041,902,107.50/279,436.03
  6. Step 6: Final answer
    x = 290,019.52

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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.