Finding the Fourth Proportional to 221,656.17, 305,897.33 and 126,193.62
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Solution
The fourth proportional to 221,656.17, 305,897.33 and 126,193.62 is: 174,153.92
Step by Step Solution
- Step 1: Write the proportion equation
221,656.17 : 305,897.33 = 126,193.62 : x - Step 2: Convert to fraction form
221,656.17/305,897.33 = 126,193.62/x - Step 3: Cross multiply
221,656.17x = 305,897.33 × 126,193.62 - Step 4: Simplify right side
221,656.17x = 38,602,291,421.03 - Step 5: Solve for x
x = 38,602,291,421.03/221,656.17 - Step 6: Final answer
x = 174,153.92
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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.