Home / 279,913.50-386,418.53-193,937.67

Finding the Fourth Proportional to 279,913.50, 386,418.53 and 193,937.67

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Solution

The fourth proportional to 279,913.50, 386,418.53 and 193,937.67 is: 267,729.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,913.50 : 386,418.53 = 193,937.67 : x
  2. Step 2: Convert to fraction form
    279,913.50/386,418.53 = 193,937.67/x
  3. Step 3: Cross multiply
    279,913.50x = 386,418.53 × 193,937.67
  4. Step 4: Simplify right side
    279,913.50x = 74,941,109,837.87
  5. Step 5: Solve for x
    x = 74,941,109,837.87/279,913.50
  6. Step 6: Final answer
    x = 267,729.53

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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.