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Finding the Fourth Proportional to 351,529.44, 485,145.36 and 200,649.12

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Solution

The fourth proportional to 351,529.44, 485,145.36 and 200,649.12 is: 276,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,529.44 : 485,145.36 = 200,649.12 : x
  2. Step 2: Convert to fraction form
    351,529.44/485,145.36 = 200,649.12/x
  3. Step 3: Cross multiply
    351,529.44x = 485,145.36 × 200,649.12
  4. Step 4: Simplify right side
    351,529.44x = 97,343,989,556.08
  5. Step 5: Solve for x
    x = 97,343,989,556.08/351,529.44
  6. Step 6: Final answer
    x = 276,915.61

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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.