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Finding the Fourth Proportional to 352,511.86, 486,466.97 and 201,608.86

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Solution

The fourth proportional to 352,511.86, 486,466.97 and 201,608.86 is: 278,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,511.86 : 486,466.97 = 201,608.86 : x
  2. Step 2: Convert to fraction form
    352,511.86/486,466.97 = 201,608.86/x
  3. Step 3: Cross multiply
    352,511.86x = 486,466.97 × 201,608.86
  4. Step 4: Simplify right side
    352,511.86x = 98,076,050,537.21
  5. Step 5: Solve for x
    x = 98,076,050,537.21/352,511.86
  6. Step 6: Final answer
    x = 278,220.57

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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.