Home / 268,929.50-371,224.24-211,418.78

Finding the Fourth Proportional to 268,929.50, 371,224.24 and 211,418.78

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Solution

The fourth proportional to 268,929.50, 371,224.24 and 211,418.78 is: 291,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,929.50 : 371,224.24 = 211,418.78 : x
  2. Step 2: Convert to fraction form
    268,929.50/371,224.24 = 211,418.78/x
  3. Step 3: Cross multiply
    268,929.50x = 371,224.24 × 211,418.78
  4. Step 4: Simplify right side
    268,929.50x = 78,483,775,927.23
  5. Step 5: Solve for x
    x = 78,483,775,927.23/268,929.50
  6. Step 6: Final answer
    x = 291,837.73

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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.