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Finding the Fourth Proportional to 311,591.89, 467,466.68 and 86,952.30

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Solution

The fourth proportional to 311,591.89, 467,466.68 and 86,952.30 is: 130,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,591.89 : 467,466.68 = 86,952.30 : x
  2. Step 2: Convert to fraction form
    311,591.89/467,466.68 = 86,952.30/x
  3. Step 3: Cross multiply
    311,591.89x = 467,466.68 × 86,952.30
  4. Step 4: Simplify right side
    311,591.89x = 40,647,302,999.36
  5. Step 5: Solve for x
    x = 40,647,302,999.36/311,591.89
  6. Step 6: Final answer
    x = 130,450.45

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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.