Finding the Fourth Proportional to 209,963.06, 289,749.93 and 134,555.30
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Solution
The fourth proportional to 209,963.06, 289,749.93 and 134,555.30 is: 185,686.90
Step by Step Solution
- Step 1: Write the proportion equation
209,963.06 : 289,749.93 = 134,555.30 : x - Step 2: Convert to fraction form
209,963.06/289,749.93 = 134,555.30/x - Step 3: Cross multiply
209,963.06x = 289,749.93 × 134,555.30 - Step 4: Simplify right side
209,963.06x = 38,987,388,756.13 - Step 5: Solve for x
x = 38,987,388,756.13/209,963.06 - Step 6: Final answer
x = 185,686.90
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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.