Finding the Fourth Proportional to 253,110.63, 349,293.30 and 138,396.68
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Solution
The fourth proportional to 253,110.63, 349,293.30 and 138,396.68 is: 190,987.76
Step by Step Solution
- Step 1: Write the proportion equation
253,110.63 : 349,293.30 = 138,396.68 : x - Step 2: Convert to fraction form
253,110.63/349,293.30 = 138,396.68/x - Step 3: Cross multiply
253,110.63x = 349,293.30 × 138,396.68 - Step 4: Simplify right side
253,110.63x = 48,341,032,374.26 - Step 5: Solve for x
x = 48,341,032,374.26/253,110.63 - Step 6: Final answer
x = 190,987.76
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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.