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Finding the Fourth Proportional to 299,136.40, 448,704.60 and 228,277.60

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Solution

The fourth proportional to 299,136.40, 448,704.60 and 228,277.60 is: 342,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,136.40 : 448,704.60 = 228,277.60 : x
  2. Step 2: Convert to fraction form
    299,136.40/448,704.60 = 228,277.60/x
  3. Step 3: Cross multiply
    299,136.40x = 448,704.60 × 228,277.60
  4. Step 4: Simplify right side
    299,136.40x = 102,429,209,196.96
  5. Step 5: Solve for x
    x = 102,429,209,196.96/299,136.40
  6. Step 6: Final answer
    x = 342,416.40

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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.