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Finding the Fourth Proportional to 311,466.80, 437,234.50 and 311,466.80

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Solution

The fourth proportional to 311,466.80, 437,234.50 and 311,466.80 is: 437,234.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,466.80 : 437,234.50 = 311,466.80 : x
  2. Step 2: Convert to fraction form
    311,466.80/437,234.50 = 311,466.80/x
  3. Step 3: Cross multiply
    311,466.80x = 437,234.50 × 311,466.80
  4. Step 4: Simplify right side
    311,466.80x = 136,184,030,564.60
  5. Step 5: Solve for x
    x = 136,184,030,564.60/311,466.80
  6. Step 6: Final answer
    x = 437,234.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.