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Finding the Fourth Proportional to 351,866.70, 485,641.05 and 200,963.70

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Solution

The fourth proportional to 351,866.70, 485,641.05 and 200,963.70 is: 277,367.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,866.70 : 485,641.05 = 200,963.70 : x
  2. Step 2: Convert to fraction form
    351,866.70/485,641.05 = 200,963.70/x
  3. Step 3: Cross multiply
    351,866.70x = 485,641.05 × 200,963.70
  4. Step 4: Simplify right side
    351,866.70x = 97,596,222,279.89
  5. Step 5: Solve for x
    x = 97,596,222,279.89/351,866.70
  6. Step 6: Final answer
    x = 277,367.03

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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.