Finding the Fourth Proportional to 298,097.70, 411,370.74 and 162,128.70
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Solution
The fourth proportional to 298,097.70, 411,370.74 and 162,128.70 is: 223,735.38
Step by Step Solution
- Step 1: Write the proportion equation
298,097.70 : 411,370.74 = 162,128.70 : x - Step 2: Convert to fraction form
298,097.70/411,370.74 = 162,128.70/x - Step 3: Cross multiply
298,097.70x = 411,370.74 × 162,128.70 - Step 4: Simplify right side
298,097.70x = 66,695,003,294.24 - Step 5: Solve for x
x = 66,695,003,294.24/298,097.70 - Step 6: Final answer
x = 223,735.38
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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.