Home / 353,087.27-487,250.19-200,139.56

Finding the Fourth Proportional to 353,087.27, 487,250.19 and 200,139.56

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Solution

The fourth proportional to 353,087.27, 487,250.19 and 200,139.56 is: 276,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,087.27 : 487,250.19 = 200,139.56 : x
  2. Step 2: Convert to fraction form
    353,087.27/487,250.19 = 200,139.56/x
  3. Step 3: Cross multiply
    353,087.27x = 487,250.19 × 200,139.56
  4. Step 4: Simplify right side
    353,087.27x = 97,518,038,636.52
  5. Step 5: Solve for x
    x = 97,518,038,636.52/353,087.27
  6. Step 6: Final answer
    x = 276,186.79

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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.