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Finding the Fourth Proportional to 352,511.30, 486,466.20 and 201,608.30

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Solution

The fourth proportional to 352,511.30, 486,466.20 and 201,608.30 is: 278,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,511.30 : 486,466.20 = 201,608.30 : x
  2. Step 2: Convert to fraction form
    352,511.30/486,466.20 = 201,608.30/x
  3. Step 3: Cross multiply
    352,511.30x = 486,466.20 × 201,608.30
  4. Step 4: Simplify right side
    352,511.30x = 98,075,622,225.35
  5. Step 5: Solve for x
    x = 98,075,622,225.35/352,511.30
  6. Step 6: Final answer
    x = 278,219.80

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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.