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Finding the Fourth Proportional to 307,668.64, 424,774.92 and 235,910.80

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Solution

The fourth proportional to 307,668.64, 424,774.92 and 235,910.80 is: 325,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,668.64 : 424,774.92 = 235,910.80 : x
  2. Step 2: Convert to fraction form
    307,668.64/424,774.92 = 235,910.80/x
  3. Step 3: Cross multiply
    307,668.64x = 424,774.92 × 235,910.80
  4. Step 4: Simplify right side
    307,668.64x = 100,208,991,197.14
  5. Step 5: Solve for x
    x = 100,208,991,197.14/307,668.64
  6. Step 6: Final answer
    x = 325,704.27

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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.