Finding the Fourth Proportional to 212,282.56, 292,916.55 and 121,621.06
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Solution
The fourth proportional to 212,282.56, 292,916.55 and 121,621.06 is: 167,817.94
Step by Step Solution
- Step 1: Write the proportion equation
212,282.56 : 292,916.55 = 121,621.06 : x - Step 2: Convert to fraction form
212,282.56/292,916.55 = 121,621.06/x - Step 3: Cross multiply
212,282.56x = 292,916.55 × 121,621.06 - Step 4: Simplify right side
212,282.56x = 35,624,821,302.54 - Step 5: Solve for x
x = 35,624,821,302.54/212,282.56 - Step 6: Final answer
x = 167,817.94
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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.