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Finding the Fourth Proportional to 371,209.70, 512,269.72 and 201,443.83

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Solution

The fourth proportional to 371,209.70, 512,269.72 and 201,443.83 is: 277,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,209.70 : 512,269.72 = 201,443.83 : x
  2. Step 2: Convert to fraction form
    371,209.70/512,269.72 = 201,443.83/x
  3. Step 3: Cross multiply
    371,209.70x = 512,269.72 × 201,443.83
  4. Step 4: Simplify right side
    371,209.70x = 103,193,572,605.54
  5. Step 5: Solve for x
    x = 103,193,572,605.54/371,209.70
  6. Step 6: Final answer
    x = 277,992.66

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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.