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Finding the Fourth Proportional to 353,860.49, 488,341.29 and 200,912.91

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Solution

The fourth proportional to 353,860.49, 488,341.29 and 200,912.91 is: 277,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,860.49 : 488,341.29 = 200,912.91 : x
  2. Step 2: Convert to fraction form
    353,860.49/488,341.29 = 200,912.91/x
  3. Step 3: Cross multiply
    353,860.49x = 488,341.29 × 200,912.91
  4. Step 4: Simplify right side
    353,860.49x = 98,114,067,205.35
  5. Step 5: Solve for x
    x = 98,114,067,205.35/353,860.49
  6. Step 6: Final answer
    x = 277,267.66

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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.