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Finding the Fourth Proportional to 201,449.10, 302,406.45 and 108,137.10

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Solution

The fourth proportional to 201,449.10, 302,406.45 and 108,137.10 is: 162,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,449.10 : 302,406.45 = 108,137.10 : x
  2. Step 2: Convert to fraction form
    201,449.10/302,406.45 = 108,137.10/x
  3. Step 3: Cross multiply
    201,449.10x = 302,406.45 × 108,137.10
  4. Step 4: Simplify right side
    201,449.10x = 32,701,356,524.30
  5. Step 5: Solve for x
    x = 32,701,356,524.30/201,449.10
  6. Step 6: Final answer
    x = 162,330.62

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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.