Finding the Fourth Proportional to 209,588.00, 288,590.94 and 157,980.06
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Solution
The fourth proportional to 209,588.00, 288,590.94 and 157,980.06 is: 217,529.70
Step by Step Solution
- Step 1: Write the proportion equation
209,588.00 : 288,590.94 = 157,980.06 : x - Step 2: Convert to fraction form
209,588.00/288,590.94 = 157,980.06/x - Step 3: Cross multiply
209,588.00x = 288,590.94 × 157,980.06 - Step 4: Simplify right side
209,588.00x = 45,591,614,016.66 - Step 5: Solve for x
x = 45,591,614,016.66/209,588.00 - Step 6: Final answer
x = 217,529.70
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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.