Finding the Fourth Proportional to 212,224.76, 292,911.76 and 121,641.44
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Solution
The fourth proportional to 212,224.76, 292,911.76 and 121,641.44 is: 167,889.03
Step by Step Solution
- Step 1: Write the proportion equation
212,224.76 : 292,911.76 = 121,641.44 : x - Step 2: Convert to fraction form
212,224.76/292,911.76 = 121,641.44/x - Step 3: Cross multiply
212,224.76x = 292,911.76 × 121,641.44 - Step 4: Simplify right side
212,224.76x = 35,630,208,279.33 - Step 5: Solve for x
x = 35,630,208,279.33/212,224.76 - Step 6: Final answer
x = 167,889.03
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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.