Finding the Fourth Proportional to 253,239.36, 349,539.36 and 157,689.60
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Solution
The fourth proportional to 253,239.36, 349,539.36 and 157,689.60 is: 217,654.64
Step by Step Solution
- Step 1: Write the proportion equation
253,239.36 : 349,539.36 = 157,689.60 : x - Step 2: Convert to fraction form
253,239.36/349,539.36 = 157,689.60/x - Step 3: Cross multiply
253,239.36x = 349,539.36 × 157,689.60 - Step 4: Simplify right side
253,239.36x = 55,118,721,862.66 - Step 5: Solve for x
x = 55,118,721,862.66/253,239.36 - Step 6: Final answer
x = 217,654.64
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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.