Finding the Fourth Proportional to 253,026.27, 349,177.64 and 138,305.07
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Solution
The fourth proportional to 253,026.27, 349,177.64 and 138,305.07 is: 190,861.75
Step by Step Solution
- Step 1: Write the proportion equation
253,026.27 : 349,177.64 = 138,305.07 : x - Step 2: Convert to fraction form
253,026.27/349,177.64 = 138,305.07/x - Step 3: Cross multiply
253,026.27x = 349,177.64 × 138,305.07 - Step 4: Simplify right side
253,026.27x = 48,293,037,251.11 - Step 5: Solve for x
x = 48,293,037,251.11/253,026.27 - Step 6: Final answer
x = 190,861.75
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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.