Home / 311,933.76-430,270.41-204,510.75

Finding the Fourth Proportional to 311,933.76, 430,270.41 and 204,510.75

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Solution

The fourth proportional to 311,933.76, 430,270.41 and 204,510.75 is: 282,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,933.76 : 430,270.41 = 204,510.75 : x
  2. Step 2: Convert to fraction form
    311,933.76/430,270.41 = 204,510.75/x
  3. Step 3: Cross multiply
    311,933.76x = 430,270.41 × 204,510.75
  4. Step 4: Simplify right side
    311,933.76x = 87,994,924,251.91
  5. Step 5: Solve for x
    x = 87,994,924,251.91/311,933.76
  6. Step 6: Final answer
    x = 282,094.90

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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.