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Finding the Fourth Proportional to 200,710.60, 300,475.37 and 133,985.23

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Solution

The fourth proportional to 200,710.60, 300,475.37 and 133,985.23 is: 200,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,710.60 : 300,475.37 = 133,985.23 : x
  2. Step 2: Convert to fraction form
    200,710.60/300,475.37 = 133,985.23/x
  3. Step 3: Cross multiply
    200,710.60x = 300,475.37 × 133,985.23
  4. Step 4: Simplify right side
    200,710.60x = 40,259,261,142.56
  5. Step 5: Solve for x
    x = 40,259,261,142.56/200,710.60
  6. Step 6: Final answer
    x = 200,583.63

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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.