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Finding the Fourth Proportional to 311,321.80, 466,982.70 and 283,765.60

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Solution

The fourth proportional to 311,321.80, 466,982.70 and 283,765.60 is: 425,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,321.80 : 466,982.70 = 283,765.60 : x
  2. Step 2: Convert to fraction form
    311,321.80/466,982.70 = 283,765.60/x
  3. Step 3: Cross multiply
    311,321.80x = 466,982.70 × 283,765.60
  4. Step 4: Simplify right side
    311,321.80x = 132,513,626,055.12
  5. Step 5: Solve for x
    x = 132,513,626,055.12/311,321.80
  6. Step 6: Final answer
    x = 425,648.40

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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.