Home / 207,821.80-311,732.70-158,055.40

Finding the Fourth Proportional to 207,821.80, 311,732.70 and 158,055.40

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Solution

The fourth proportional to 207,821.80, 311,732.70 and 158,055.40 is: 237,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,821.80 : 311,732.70 = 158,055.40 : x
  2. Step 2: Convert to fraction form
    207,821.80/311,732.70 = 158,055.40/x
  3. Step 3: Cross multiply
    207,821.80x = 311,732.70 × 158,055.40
  4. Step 4: Simplify right side
    207,821.80x = 49,271,036,591.58
  5. Step 5: Solve for x
    x = 49,271,036,591.58/207,821.80
  6. Step 6: Final answer
    x = 237,083.10

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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.