Finding the Fourth Proportional to 253,617.36, 349,992.18 and 140,437.68
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Solution
The fourth proportional to 253,617.36, 349,992.18 and 140,437.68 is: 193,804.12
Step by Step Solution
- Step 1: Write the proportion equation
253,617.36 : 349,992.18 = 140,437.68 : x - Step 2: Convert to fraction form
253,617.36/349,992.18 = 140,437.68/x - Step 3: Cross multiply
253,617.36x = 349,992.18 × 140,437.68 - Step 4: Simplify right side
253,617.36x = 49,152,089,777.34 - Step 5: Solve for x
x = 49,152,089,777.34/253,617.36 - Step 6: Final answer
x = 193,804.12
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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.