Home / 311,932.76-430,269.03-204,509.75

Finding the Fourth Proportional to 311,932.76, 430,269.03 and 204,509.75

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Solution

The fourth proportional to 311,932.76, 430,269.03 and 204,509.75 is: 282,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,932.76 : 430,269.03 = 204,509.75 : x
  2. Step 2: Convert to fraction form
    311,932.76/430,269.03 = 204,509.75/x
  3. Step 3: Cross multiply
    311,932.76x = 430,269.03 × 204,509.75
  4. Step 4: Simplify right side
    311,932.76x = 87,994,209,606.70
  5. Step 5: Solve for x
    x = 87,994,209,606.70/311,932.76
  6. Step 6: Final answer
    x = 282,093.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.