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Finding the Fourth Proportional to 351,310.75, 484,874.52 and 200,407.75

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Solution

The fourth proportional to 351,310.75, 484,874.52 and 200,407.75 is: 276,600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,310.75 : 484,874.52 = 200,407.75 : x
  2. Step 2: Convert to fraction form
    351,310.75/484,874.52 = 200,407.75/x
  3. Step 3: Cross multiply
    351,310.75x = 484,874.52 × 200,407.75
  4. Step 4: Simplify right side
    351,310.75x = 97,172,610,583.49
  5. Step 5: Solve for x
    x = 97,172,610,583.49/351,310.75
  6. Step 6: Final answer
    x = 276,600.16

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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.