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Finding the Fourth Proportional to 201,074.40, 301,830.30 and 112,500.90

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Solution

The fourth proportional to 201,074.40, 301,830.30 and 112,500.90 is: 168,873.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,074.40 : 301,830.30 = 112,500.90 : x
  2. Step 2: Convert to fraction form
    201,074.40/301,830.30 = 112,500.90/x
  3. Step 3: Cross multiply
    201,074.40x = 301,830.30 × 112,500.90
  4. Step 4: Simplify right side
    201,074.40x = 33,956,180,397.27
  5. Step 5: Solve for x
    x = 33,956,180,397.27/201,074.40
  6. Step 6: Final answer
    x = 168,873.71

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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.