Home / 221,445.78-331,669.26-102,867.58

Finding the Fourth Proportional to 221,445.78, 331,669.26 and 102,867.58

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Solution

The fourth proportional to 221,445.78, 331,669.26 and 102,867.58 is: 154,069.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,445.78 : 331,669.26 = 102,867.58 : x
  2. Step 2: Convert to fraction form
    221,445.78/331,669.26 = 102,867.58/x
  3. Step 3: Cross multiply
    221,445.78x = 331,669.26 × 102,867.58
  4. Step 4: Simplify right side
    221,445.78x = 34,118,014,136.59
  5. Step 5: Solve for x
    x = 34,118,014,136.59/221,445.78
  6. Step 6: Final answer
    x = 154,069.38

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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.