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Finding the Fourth Proportional to 303,563.40, 454,980.60 and 208,793.40

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Solution

The fourth proportional to 303,563.40, 454,980.60 and 208,793.40 is: 312,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,563.40 : 454,980.60 = 208,793.40 : x
  2. Step 2: Convert to fraction form
    303,563.40/454,980.60 = 208,793.40/x
  3. Step 3: Cross multiply
    303,563.40x = 454,980.60 × 208,793.40
  4. Step 4: Simplify right side
    303,563.40x = 94,996,946,408.04
  5. Step 5: Solve for x
    x = 94,996,946,408.04/303,563.40
  6. Step 6: Final answer
    x = 312,939.39

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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.