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Finding the Fourth Proportional to 200,355.88, 300,090.48 and 137,025.76

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Solution

The fourth proportional to 200,355.88, 300,090.48 and 137,025.76 is: 205,235.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,355.88 : 300,090.48 = 137,025.76 : x
  2. Step 2: Convert to fraction form
    200,355.88/300,090.48 = 137,025.76/x
  3. Step 3: Cross multiply
    200,355.88x = 300,090.48 × 137,025.76
  4. Step 4: Simplify right side
    200,355.88x = 41,120,126,090.76
  5. Step 5: Solve for x
    x = 41,120,126,090.76/200,355.88
  6. Step 6: Final answer
    x = 205,235.43

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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.