Finding the Fourth Proportional to 221,572.93, 305,769.06 and 120,970.93
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Solution
The fourth proportional to 221,572.93, 305,769.06 and 120,970.93 is: 166,939.02
Step by Step Solution
- Step 1: Write the proportion equation
221,572.93 : 305,769.06 = 120,970.93 : x - Step 2: Convert to fraction form
221,572.93/305,769.06 = 120,970.93/x - Step 3: Cross multiply
221,572.93x = 305,769.06 × 120,970.93 - Step 4: Simplify right side
221,572.93x = 36,989,167,553.43 - Step 5: Solve for x
x = 36,989,167,553.43/221,572.93 - Step 6: Final answer
x = 166,939.02
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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.