Home / 311,981.45-468,089.40-185,694.35

Finding the Fourth Proportional to 311,981.45, 468,089.40 and 185,694.35

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Solution

The fourth proportional to 311,981.45, 468,089.40 and 185,694.35 is: 278,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,981.45 : 468,089.40 = 185,694.35 : x
  2. Step 2: Convert to fraction form
    311,981.45/468,089.40 = 185,694.35/x
  3. Step 3: Cross multiply
    311,981.45x = 468,089.40 × 185,694.35
  4. Step 4: Simplify right side
    311,981.45x = 86,921,556,874.89
  5. Step 5: Solve for x
    x = 86,921,556,874.89/311,981.45
  6. Step 6: Final answer
    x = 278,611.30

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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.