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Finding the Fourth Proportional to 200,124.22, 300,200.01 and 66,999.10

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Solution

The fourth proportional to 200,124.22, 300,200.01 and 66,999.10 is: 100,503.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,124.22 : 300,200.01 = 66,999.10 : x
  2. Step 2: Convert to fraction form
    200,124.22/300,200.01 = 66,999.10/x
  3. Step 3: Cross multiply
    200,124.22x = 300,200.01 × 66,999.10
  4. Step 4: Simplify right side
    200,124.22x = 20,113,130,489.99
  5. Step 5: Solve for x
    x = 20,113,130,489.99/200,124.22
  6. Step 6: Final answer
    x = 100,503.23

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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.