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Finding the Fourth Proportional to 207,995.56, 311,734.50 and 101,292.28

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Solution

The fourth proportional to 207,995.56, 311,734.50 and 101,292.28 is: 151,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,995.56 : 311,734.50 = 101,292.28 : x
  2. Step 2: Convert to fraction form
    207,995.56/311,734.50 = 101,292.28/x
  3. Step 3: Cross multiply
    207,995.56x = 311,734.50 × 101,292.28
  4. Step 4: Simplify right side
    207,995.56x = 31,576,298,259.66
  5. Step 5: Solve for x
    x = 31,576,298,259.66/207,995.56
  6. Step 6: Final answer
    x = 151,812.37

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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.