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Finding the Fourth Proportional to 352,503.98, 486,404.17 and 201,571.82

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Solution

The fourth proportional to 352,503.98, 486,404.17 and 201,571.82 is: 278,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,503.98 : 486,404.17 = 201,571.82 : x
  2. Step 2: Convert to fraction form
    352,503.98/486,404.17 = 201,571.82/x
  3. Step 3: Cross multiply
    352,503.98x = 486,404.17 × 201,571.82
  4. Step 4: Simplify right side
    352,503.98x = 98,045,373,802.49
  5. Step 5: Solve for x
    x = 98,045,373,802.49/352,503.98
  6. Step 6: Final answer
    x = 278,139.76

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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.