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Finding the Fourth Proportional to 403,183.40, 604,515.90 and 166,620.20

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Solution

The fourth proportional to 403,183.40, 604,515.90 and 166,620.20 is: 249,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,183.40 : 604,515.90 = 166,620.20 : x
  2. Step 2: Convert to fraction form
    403,183.40/604,515.90 = 166,620.20/x
  3. Step 3: Cross multiply
    403,183.40x = 604,515.90 × 166,620.20
  4. Step 4: Simplify right side
    403,183.40x = 100,724,560,161.18
  5. Step 5: Solve for x
    x = 100,724,560,161.18/403,183.40
  6. Step 6: Final answer
    x = 249,823.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.