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Finding the Fourth Proportional to 340,571.25, 470,002.91 and 189,668.25

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Solution

The fourth proportional to 340,571.25, 470,002.91 and 189,668.25 is: 261,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,571.25 : 470,002.91 = 189,668.25 : x
  2. Step 2: Convert to fraction form
    340,571.25/470,002.91 = 189,668.25/x
  3. Step 3: Cross multiply
    340,571.25x = 470,002.91 × 189,668.25
  4. Step 4: Simplify right side
    340,571.25x = 89,144,628,486.27
  5. Step 5: Solve for x
    x = 89,144,628,486.27/340,571.25
  6. Step 6: Final answer
    x = 261,750.30

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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.