Finding the Fourth Proportional to 196,447.41, 271,026.27 and 128,503.08
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Solution
The fourth proportional to 196,447.41, 271,026.27 and 128,503.08 is: 177,287.70
Step by Step Solution
- Step 1: Write the proportion equation
196,447.41 : 271,026.27 = 128,503.08 : x - Step 2: Convert to fraction form
196,447.41/271,026.27 = 128,503.08/x - Step 3: Cross multiply
196,447.41x = 271,026.27 × 128,503.08 - Step 4: Simplify right side
196,447.41x = 34,827,710,455.91 - Step 5: Solve for x
x = 34,827,710,455.91/196,447.41 - Step 6: Final answer
x = 177,287.70
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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.