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Finding the Fourth Proportional to 200,555.55, 300,644.88 and 67,342.36

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Solution

The fourth proportional to 200,555.55, 300,644.88 and 67,342.36 is: 100,950.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,555.55 : 300,644.88 = 67,342.36 : x
  2. Step 2: Convert to fraction form
    200,555.55/300,644.88 = 67,342.36/x
  3. Step 3: Cross multiply
    200,555.55x = 300,644.88 × 67,342.36
  4. Step 4: Simplify right side
    200,555.55x = 20,246,135,741.12
  5. Step 5: Solve for x
    x = 20,246,135,741.12/200,555.55
  6. Step 6: Final answer
    x = 100,950.26

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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.