Home / 279,940.84-386,263.62-165,255.40

Finding the Fourth Proportional to 279,940.84, 386,263.62 and 165,255.40

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Solution

The fourth proportional to 279,940.84, 386,263.62 and 165,255.40 is: 228,020.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,940.84 : 386,263.62 = 165,255.40 : x
  2. Step 2: Convert to fraction form
    279,940.84/386,263.62 = 165,255.40/x
  3. Step 3: Cross multiply
    279,940.84x = 386,263.62 × 165,255.40
  4. Step 4: Simplify right side
    279,940.84x = 63,832,149,028.55
  5. Step 5: Solve for x
    x = 63,832,149,028.55/279,940.84
  6. Step 6: Final answer
    x = 228,020.14

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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.