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Finding the Fourth Proportional to 207,635.70, 311,453.55 and 203,699.10

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Solution

The fourth proportional to 207,635.70, 311,453.55 and 203,699.10 is: 305,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,635.70 : 311,453.55 = 203,699.10 : x
  2. Step 2: Convert to fraction form
    207,635.70/311,453.55 = 203,699.10/x
  3. Step 3: Cross multiply
    207,635.70x = 311,453.55 × 203,699.10
  4. Step 4: Simplify right side
    207,635.70x = 63,442,807,826.81
  5. Step 5: Solve for x
    x = 63,442,807,826.81/207,635.70
  6. Step 6: Final answer
    x = 305,548.65

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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.