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Finding the Fourth Proportional to 311,450.80, 466,884.60 and 243,945.40

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Solution

The fourth proportional to 311,450.80, 466,884.60 and 243,945.40 is: 365,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,450.80 : 466,884.60 = 243,945.40 : x
  2. Step 2: Convert to fraction form
    311,450.80/466,884.60 = 243,945.40/x
  3. Step 3: Cross multiply
    311,450.80x = 466,884.60 × 243,945.40
  4. Step 4: Simplify right side
    311,450.80x = 113,894,350,500.84
  5. Step 5: Solve for x
    x = 113,894,350,500.84/311,450.80
  6. Step 6: Final answer
    x = 365,689.70

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1.5x scale

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.