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Finding the Fourth Proportional to 201,321.10, 302,018.10 and 101,229.40

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Solution

The fourth proportional to 201,321.10, 302,018.10 and 101,229.40 is: 151,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,321.10 : 302,018.10 = 101,229.40 : x
  2. Step 2: Convert to fraction form
    201,321.10/302,018.10 = 101,229.40/x
  3. Step 3: Cross multiply
    201,321.10x = 302,018.10 × 101,229.40
  4. Step 4: Simplify right side
    201,321.10x = 30,573,111,052.14
  5. Step 5: Solve for x
    x = 30,573,111,052.14/201,321.10
  6. Step 6: Final answer
    x = 151,862.43

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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.