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Finding the Fourth Proportional to 200,412.31, 300,646.15 and 67,330.63

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Solution

The fourth proportional to 200,412.31, 300,646.15 and 67,330.63 is: 101,005.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,412.31 : 300,646.15 = 67,330.63 : x
  2. Step 2: Convert to fraction form
    200,412.31/300,646.15 = 67,330.63/x
  3. Step 3: Cross multiply
    200,412.31x = 300,646.15 × 67,330.63
  4. Step 4: Simplify right side
    200,412.31x = 20,242,694,613.30
  5. Step 5: Solve for x
    x = 20,242,694,613.30/200,412.31
  6. Step 6: Final answer
    x = 101,005.24

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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.