Home / 207,790.38-311,607.81-163,933.74

Finding the Fourth Proportional to 207,790.38, 311,607.81 and 163,933.74

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Solution

The fourth proportional to 207,790.38, 311,607.81 and 163,933.74 is: 245,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,790.38 : 311,607.81 = 163,933.74 : x
  2. Step 2: Convert to fraction form
    207,790.38/311,607.81 = 163,933.74/x
  3. Step 3: Cross multiply
    207,790.38x = 311,607.81 × 163,933.74
  4. Step 4: Simplify right side
    207,790.38x = 51,083,033,706.51
  5. Step 5: Solve for x
    x = 51,083,033,706.51/207,790.38
  6. Step 6: Final answer
    x = 245,839.26

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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.