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Finding the Fourth Proportional to 201,136.10, 301,898.55 and 101,408.90

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Solution

The fourth proportional to 201,136.10, 301,898.55 and 101,408.90 is: 152,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,136.10 : 301,898.55 = 101,408.90 : x
  2. Step 2: Convert to fraction form
    201,136.10/301,898.55 = 101,408.90/x
  3. Step 3: Cross multiply
    201,136.10x = 301,898.55 × 101,408.90
  4. Step 4: Simplify right side
    201,136.10x = 30,615,199,867.10
  5. Step 5: Solve for x
    x = 30,615,199,867.10/201,136.10
  6. Step 6: Final answer
    x = 152,211.36

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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.