Finding the Fourth Proportional to 340,730.21, 470,201.36 and 187,782.57
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Solution
The fourth proportional to 340,730.21, 470,201.36 and 187,782.57 is: 259,136.45
Step by Step Solution
- Step 1: Write the proportion equation
340,730.21 : 470,201.36 = 187,782.57 : x - Step 2: Convert to fraction form
340,730.21/470,201.36 = 187,782.57/x - Step 3: Cross multiply
340,730.21x = 470,201.36 × 187,782.57 - Step 4: Simplify right side
340,730.21x = 88,295,618,859.38 - Step 5: Solve for x
x = 88,295,618,859.38/340,730.21 - Step 6: Final answer
x = 259,136.45
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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.