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Finding the Fourth Proportional to 200,419.80, 300,629.70 and 182,340.60

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Solution

The fourth proportional to 200,419.80, 300,629.70 and 182,340.60 is: 273,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,419.80 : 300,629.70 = 182,340.60 : x
  2. Step 2: Convert to fraction form
    200,419.80/300,629.70 = 182,340.60/x
  3. Step 3: Cross multiply
    200,419.80x = 300,629.70 × 182,340.60
  4. Step 4: Simplify right side
    200,419.80x = 54,816,999,875.82
  5. Step 5: Solve for x
    x = 54,816,999,875.82/200,419.80
  6. Step 6: Final answer
    x = 273,510.90

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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.