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Finding the Fourth Proportional to 351,697.04, 485,287.08 and 208,433.96

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Solution

The fourth proportional to 351,697.04, 485,287.08 and 208,433.96 is: 287,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,697.04 : 485,287.08 = 208,433.96 : x
  2. Step 2: Convert to fraction form
    351,697.04/485,287.08 = 208,433.96/x
  3. Step 3: Cross multiply
    351,697.04x = 485,287.08 × 208,433.96
  4. Step 4: Simplify right side
    351,697.04x = 101,150,307,821.24
  5. Step 5: Solve for x
    x = 101,150,307,821.24/351,697.04
  6. Step 6: Final answer
    x = 287,606.37

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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.