Home / 257,914.53-355,906.08-143,186.49

Finding the Fourth Proportional to 257,914.53, 355,906.08 and 143,186.49

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Solution

The fourth proportional to 257,914.53, 355,906.08 and 143,186.49 is: 197,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,914.53 : 355,906.08 = 143,186.49 : x
  2. Step 2: Convert to fraction form
    257,914.53/355,906.08 = 143,186.49/x
  3. Step 3: Cross multiply
    257,914.53x = 355,906.08 × 143,186.49
  4. Step 4: Simplify right side
    257,914.53x = 50,960,942,364.86
  5. Step 5: Solve for x
    x = 50,960,942,364.86/257,914.53
  6. Step 6: Final answer
    x = 197,588.49

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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.