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Finding the Fourth Proportional to 201,228.10, 301,878.60 and 101,136.40

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Solution

The fourth proportional to 201,228.10, 301,878.60 and 101,136.40 is: 151,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,228.10 : 301,878.60 = 101,136.40 : x
  2. Step 2: Convert to fraction form
    201,228.10/301,878.60 = 101,136.40/x
  3. Step 3: Cross multiply
    201,228.10x = 301,878.60 × 101,136.40
  4. Step 4: Simplify right side
    201,228.10x = 30,530,914,841.04
  5. Step 5: Solve for x
    x = 30,530,914,841.04/201,228.10
  6. Step 6: Final answer
    x = 151,722.92

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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.