Finding the Fourth Proportional to 253,239.32, 349,539.36 and 157,689.56
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Solution
The fourth proportional to 253,239.32, 349,539.36 and 157,689.56 is: 217,654.62
Step by Step Solution
- Step 1: Write the proportion equation
253,239.32 : 349,539.36 = 157,689.56 : x - Step 2: Convert to fraction form
253,239.32/349,539.36 = 157,689.56/x - Step 3: Cross multiply
253,239.32x = 349,539.36 × 157,689.56 - Step 4: Simplify right side
253,239.32x = 55,118,707,881.08 - Step 5: Solve for x
x = 55,118,707,881.08/253,239.32 - Step 6: Final answer
x = 217,654.62
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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.