Finding the Fourth Proportional to 213,398.18, 294,495.42 and 117,911.03
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Solution
The fourth proportional to 213,398.18, 294,495.42 and 117,911.03 is: 162,720.50
Step by Step Solution
- Step 1: Write the proportion equation
213,398.18 : 294,495.42 = 117,911.03 : x - Step 2: Convert to fraction form
213,398.18/294,495.42 = 117,911.03/x - Step 3: Cross multiply
213,398.18x = 294,495.42 × 117,911.03 - Step 4: Simplify right side
213,398.18x = 34,724,256,830.01 - Step 5: Solve for x
x = 34,724,256,830.01/213,398.18 - Step 6: Final answer
x = 162,720.50
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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.