Home / 207,905.70-311,858.55-199,048.35

Finding the Fourth Proportional to 207,905.70, 311,858.55 and 199,048.35

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Solution

The fourth proportional to 207,905.70, 311,858.55 and 199,048.35 is: 298,572.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,905.70 : 311,858.55 = 199,048.35 : x
  2. Step 2: Convert to fraction form
    207,905.70/311,858.55 = 199,048.35/x
  3. Step 3: Cross multiply
    207,905.70x = 311,858.55 × 199,048.35
  4. Step 4: Simplify right side
    207,905.70x = 62,074,929,810.89
  5. Step 5: Solve for x
    x = 62,074,929,810.89/207,905.70
  6. Step 6: Final answer
    x = 298,572.53

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1.5x scale

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.