Finding the Fourth Proportional to 209,595.06, 288,600.66 and 157,987.08
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Solution
The fourth proportional to 209,595.06, 288,600.66 and 157,987.08 is: 217,539.36
Step by Step Solution
- Step 1: Write the proportion equation
209,595.06 : 288,600.66 = 157,987.08 : x - Step 2: Convert to fraction form
209,595.06/288,600.66 = 157,987.08/x - Step 3: Cross multiply
209,595.06x = 288,600.66 × 157,987.08 - Step 4: Simplify right side
209,595.06x = 45,595,175,559.47 - Step 5: Solve for x
x = 45,595,175,559.47/209,595.06 - Step 6: Final answer
x = 217,539.36
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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.