Finding the Fourth Proportional to 197,991.05, 272,963.33 and 157,290.23
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Solution
The fourth proportional to 197,991.05, 272,963.33 and 157,290.23 is: 216,850.53
Step by Step Solution
- Step 1: Write the proportion equation
197,991.05 : 272,963.33 = 157,290.23 : x - Step 2: Convert to fraction form
197,991.05/272,963.33 = 157,290.23/x - Step 3: Cross multiply
197,991.05x = 272,963.33 × 157,290.23 - Step 4: Simplify right side
197,991.05x = 42,934,463,592.45 - Step 5: Solve for x
x = 42,934,463,592.45/197,991.05 - Step 6: Final answer
x = 216,850.53
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1.5x scale
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.