Finding the Fourth Proportional to 253,577.80, 349,941.67 and 138,854.62
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Solution
The fourth proportional to 253,577.80, 349,941.67 and 138,854.62 is: 191,621.73
Step by Step Solution
- Step 1: Write the proportion equation
253,577.80 : 349,941.67 = 138,854.62 : x - Step 2: Convert to fraction form
253,577.80/349,941.67 = 138,854.62/x - Step 3: Cross multiply
253,577.80x = 349,941.67 × 138,854.62 - Step 4: Simplify right side
253,577.80x = 48,591,017,700.31 - Step 5: Solve for x
x = 48,591,017,700.31/253,577.80 - Step 6: Final answer
x = 191,621.73
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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.