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Finding the Fourth Proportional to 201,645.20, 302,467.80 and 198,534.80

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Solution

The fourth proportional to 201,645.20, 302,467.80 and 198,534.80 is: 297,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,645.20 : 302,467.80 = 198,534.80 : x
  2. Step 2: Convert to fraction form
    201,645.20/302,467.80 = 198,534.80/x
  3. Step 3: Cross multiply
    201,645.20x = 302,467.80 × 198,534.80
  4. Step 4: Simplify right side
    201,645.20x = 60,050,384,179.44
  5. Step 5: Solve for x
    x = 60,050,384,179.44/201,645.20
  6. Step 6: Final answer
    x = 297,802.20

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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.