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Finding the Fourth Proportional to 201,620.70, 302,431.05 and 141,486.30

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Solution

The fourth proportional to 201,620.70, 302,431.05 and 141,486.30 is: 212,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,620.70 : 302,431.05 = 141,486.30 : x
  2. Step 2: Convert to fraction form
    201,620.70/302,431.05 = 141,486.30/x
  3. Step 3: Cross multiply
    201,620.70x = 302,431.05 × 141,486.30
  4. Step 4: Simplify right side
    201,620.70x = 42,789,850,269.62
  5. Step 5: Solve for x
    x = 42,789,850,269.62/201,620.70
  6. Step 6: Final answer
    x = 212,229.45

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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.