Home / 353,091.26-487,255.70-200,143.56

Finding the Fourth Proportional to 353,091.26, 487,255.70 and 200,143.56

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Solution

The fourth proportional to 353,091.26, 487,255.70 and 200,143.56 is: 276,192.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,091.26 : 487,255.70 = 200,143.56 : x
  2. Step 2: Convert to fraction form
    353,091.26/487,255.70 = 200,143.56/x
  3. Step 3: Cross multiply
    353,091.26x = 487,255.70 × 200,143.56
  4. Step 4: Simplify right side
    353,091.26x = 97,521,090,428.29
  5. Step 5: Solve for x
    x = 97,521,090,428.29/353,091.26
  6. Step 6: Final answer
    x = 276,192.31

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1.5x scale

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.