Finding the Fourth Proportional to 197,781.96, 272,674.80 and 163,664.76
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Solution
The fourth proportional to 197,781.96, 272,674.80 and 163,664.76 is: 225,638.66
Step by Step Solution
- Step 1: Write the proportion equation
197,781.96 : 272,674.80 = 163,664.76 : x - Step 2: Convert to fraction form
197,781.96/272,674.80 = 163,664.76/x - Step 3: Cross multiply
197,781.96x = 272,674.80 × 163,664.76 - Step 4: Simplify right side
197,781.96x = 44,627,255,700.05 - Step 5: Solve for x
x = 44,627,255,700.05/197,781.96 - Step 6: Final answer
x = 225,638.66
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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.