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Finding the Fourth Proportional to 358,899.80, 495,520.26 and 223,136.60

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Solution

The fourth proportional to 358,899.80, 495,520.26 and 223,136.60 is: 308,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,899.80 : 495,520.26 = 223,136.60 : x
  2. Step 2: Convert to fraction form
    358,899.80/495,520.26 = 223,136.60/x
  3. Step 3: Cross multiply
    358,899.80x = 495,520.26 × 223,136.60
  4. Step 4: Simplify right side
    358,899.80x = 110,568,706,047.52
  5. Step 5: Solve for x
    x = 110,568,706,047.52/358,899.80
  6. Step 6: Final answer
    x = 308,076.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.