Home / 207,622.40-311,433.60-187,283.30

Finding the Fourth Proportional to 207,622.40, 311,433.60 and 187,283.30

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Solution

The fourth proportional to 207,622.40, 311,433.60 and 187,283.30 is: 280,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,622.40 : 311,433.60 = 187,283.30 : x
  2. Step 2: Convert to fraction form
    207,622.40/311,433.60 = 187,283.30/x
  3. Step 3: Cross multiply
    207,622.40x = 311,433.60 × 187,283.30
  4. Step 4: Simplify right side
    207,622.40x = 58,326,312,338.88
  5. Step 5: Solve for x
    x = 58,326,312,338.88/207,622.40
  6. Step 6: Final answer
    x = 280,924.95

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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.