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Finding the Fourth Proportional to 351,689.04, 485,319.60 and 200,786.04

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Solution

The fourth proportional to 351,689.04, 485,319.60 and 200,786.04 is: 277,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,689.04 : 485,319.60 = 200,786.04 : x
  2. Step 2: Convert to fraction form
    351,689.04/485,319.60 = 200,786.04/x
  3. Step 3: Cross multiply
    351,689.04x = 485,319.60 × 200,786.04
  4. Step 4: Simplify right side
    351,689.04x = 97,445,400,618.38
  5. Step 5: Solve for x
    x = 97,445,400,618.38/351,689.04
  6. Step 6: Final answer
    x = 277,078.30

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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.