Finding the Fourth Proportional to 209,670.23, 289,357.06 and 157,894.63
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Solution
The fourth proportional to 209,670.23, 289,357.06 and 157,894.63 is: 217,903.73
Step by Step Solution
- Step 1: Write the proportion equation
209,670.23 : 289,357.06 = 157,894.63 : x - Step 2: Convert to fraction form
209,670.23/289,357.06 = 157,894.63/x - Step 3: Cross multiply
209,670.23x = 289,357.06 × 157,894.63 - Step 4: Simplify right side
209,670.23x = 45,687,924,479.80 - Step 5: Solve for x
x = 45,687,924,479.80/209,670.23 - Step 6: Final answer
x = 217,903.73
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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.