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Finding the Fourth Proportional to 303,567.40, 454,986.60 and 208,797.40

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Solution

The fourth proportional to 303,567.40, 454,986.60 and 208,797.40 is: 312,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,567.40 : 454,986.60 = 208,797.40 : x
  2. Step 2: Convert to fraction form
    303,567.40/454,986.60 = 208,797.40/x
  3. Step 3: Cross multiply
    303,567.40x = 454,986.60 × 208,797.40
  4. Step 4: Simplify right side
    303,567.40x = 95,000,019,114.84
  5. Step 5: Solve for x
    x = 95,000,019,114.84/303,567.40
  6. Step 6: Final answer
    x = 312,945.39

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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.