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Finding the Fourth Proportional to 219,618.60, 329,427.90 and 201,903.90

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Solution

The fourth proportional to 219,618.60, 329,427.90 and 201,903.90 is: 302,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,618.60 : 329,427.90 = 201,903.90 : x
  2. Step 2: Convert to fraction form
    219,618.60/329,427.90 = 201,903.90/x
  3. Step 3: Cross multiply
    219,618.60x = 329,427.90 × 201,903.90
  4. Step 4: Simplify right side
    219,618.60x = 66,512,777,778.81
  5. Step 5: Solve for x
    x = 66,512,777,778.81/219,618.60
  6. Step 6: Final answer
    x = 302,855.85

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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.