Finding the Fourth Proportional to 221,943.12, 306,040.68 and 141,267.48
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Solution
The fourth proportional to 221,943.12, 306,040.68 and 141,267.48 is: 194,795.84
Step by Step Solution
- Step 1: Write the proportion equation
221,943.12 : 306,040.68 = 141,267.48 : x - Step 2: Convert to fraction form
221,943.12/306,040.68 = 141,267.48/x - Step 3: Cross multiply
221,943.12x = 306,040.68 × 141,267.48 - Step 4: Simplify right side
221,943.12x = 43,233,595,641.09 - Step 5: Solve for x
x = 43,233,595,641.09/221,943.12 - Step 6: Final answer
x = 194,795.84
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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.