Home / 207,680.14-311,515.73-57,916.43

Finding the Fourth Proportional to 207,680.14, 311,515.73 and 57,916.43

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Solution

The fourth proportional to 207,680.14, 311,515.73 and 57,916.43 is: 86,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,680.14 : 311,515.73 = 57,916.43 : x
  2. Step 2: Convert to fraction form
    207,680.14/311,515.73 = 57,916.43/x
  3. Step 3: Cross multiply
    207,680.14x = 311,515.73 × 57,916.43
  4. Step 4: Simplify right side
    207,680.14x = 18,041,879,459.65
  5. Step 5: Solve for x
    x = 18,041,879,459.65/207,680.14
  6. Step 6: Final answer
    x = 86,873.40

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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.