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Finding the Fourth Proportional to 201,375.93, 301,999.34 and 66,409.70

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Solution

The fourth proportional to 201,375.93, 301,999.34 and 66,409.70 is: 99,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,375.93 : 301,999.34 = 66,409.70 : x
  2. Step 2: Convert to fraction form
    201,375.93/301,999.34 = 66,409.70/x
  3. Step 3: Cross multiply
    201,375.93x = 301,999.34 × 66,409.70
  4. Step 4: Simplify right side
    201,375.93x = 20,055,683,727.55
  5. Step 5: Solve for x
    x = 20,055,683,727.55/201,375.93
  6. Step 6: Final answer
    x = 99,593.25

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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.