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Finding the Fourth Proportional to 200,008.98, 300,050.83 and 66,889.93

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Solution

The fourth proportional to 200,008.98, 300,050.83 and 66,889.93 is: 100,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,008.98 : 300,050.83 = 66,889.93 : x
  2. Step 2: Convert to fraction form
    200,008.98/300,050.83 = 66,889.93/x
  3. Step 3: Cross multiply
    200,008.98x = 300,050.83 × 66,889.93
  4. Step 4: Simplify right side
    200,008.98x = 20,070,378,680.69
  5. Step 5: Solve for x
    x = 20,070,378,680.69/200,008.98
  6. Step 6: Final answer
    x = 100,347.39

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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.