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Finding the Fourth Proportional to 201,299.72, 301,999.03 and 100,145.51

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Solution

The fourth proportional to 201,299.72, 301,999.03 and 100,145.51 is: 150,242.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,299.72 : 301,999.03 = 100,145.51 : x
  2. Step 2: Convert to fraction form
    201,299.72/301,999.03 = 100,145.51/x
  3. Step 3: Cross multiply
    201,299.72x = 301,999.03 × 100,145.51
  4. Step 4: Simplify right side
    201,299.72x = 30,243,845,118.50
  5. Step 5: Solve for x
    x = 30,243,845,118.50/201,299.72
  6. Step 6: Final answer
    x = 150,242.86

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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.