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Finding the Fourth Proportional to 203,989.56, 305,975.00 and 70,880.24

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Solution

The fourth proportional to 203,989.56, 305,975.00 and 70,880.24 is: 106,317.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,989.56 : 305,975.00 = 70,880.24 : x
  2. Step 2: Convert to fraction form
    203,989.56/305,975.00 = 70,880.24/x
  3. Step 3: Cross multiply
    203,989.56x = 305,975.00 × 70,880.24
  4. Step 4: Simplify right side
    203,989.56x = 21,687,579,549.72
  5. Step 5: Solve for x
    x = 21,687,579,549.72/203,989.56
  6. Step 6: Final answer
    x = 106,317.11

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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.