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Finding the Fourth Proportional to 360,903.85, 498,171.87 and 208,003.03

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Solution

The fourth proportional to 360,903.85, 498,171.87 and 208,003.03 is: 287,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,903.85 : 498,171.87 = 208,003.03 : x
  2. Step 2: Convert to fraction form
    360,903.85/498,171.87 = 208,003.03/x
  3. Step 3: Cross multiply
    360,903.85x = 498,171.87 × 208,003.03
  4. Step 4: Simplify right side
    360,903.85x = 103,621,257,175.34
  5. Step 5: Solve for x
    x = 103,621,257,175.34/360,903.85
  6. Step 6: Final answer
    x = 287,115.97

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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.