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Finding the Fourth Proportional to 201,231.10, 301,501.05 and 131,074.30

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Solution

The fourth proportional to 201,231.10, 301,501.05 and 131,074.30 is: 196,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,231.10 : 301,501.05 = 131,074.30 : x
  2. Step 2: Convert to fraction form
    201,231.10/301,501.05 = 131,074.30/x
  3. Step 3: Cross multiply
    201,231.10x = 301,501.05 × 131,074.30
  4. Step 4: Simplify right side
    201,231.10x = 39,519,039,078.02
  5. Step 5: Solve for x
    x = 39,519,039,078.02/201,231.10
  6. Step 6: Final answer
    x = 196,386.34

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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.