Home / 643,316.20-964,974.30-200,026.60

Finding the Fourth Proportional to 643,316.20, 964,974.30 and 200,026.60

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Solution

The fourth proportional to 643,316.20, 964,974.30 and 200,026.60 is: 300,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,316.20 : 964,974.30 = 200,026.60 : x
  2. Step 2: Convert to fraction form
    643,316.20/964,974.30 = 200,026.60/x
  3. Step 3: Cross multiply
    643,316.20x = 964,974.30 × 200,026.60
  4. Step 4: Simplify right side
    643,316.20x = 193,020,528,316.38
  5. Step 5: Solve for x
    x = 193,020,528,316.38/643,316.20
  6. Step 6: Final answer
    x = 300,039.90

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Similar ratio
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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.