Finding the Fourth Proportional to 284,742.62, 392,927.93 and 157,410.62
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Solution
The fourth proportional to 284,742.62, 392,927.93 and 157,410.62 is: 217,217.32
Step by Step Solution
- Step 1: Write the proportion equation
284,742.62 : 392,927.93 = 157,410.62 : x - Step 2: Convert to fraction form
284,742.62/392,927.93 = 157,410.62/x - Step 3: Cross multiply
284,742.62x = 392,927.93 × 157,410.62 - Step 4: Simplify right side
284,742.62x = 61,851,026,324.92 - Step 5: Solve for x
x = 61,851,026,324.92/284,742.62 - Step 6: Final answer
x = 217,217.32
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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.