Finding the Fourth Proportional to 221,554.67, 305,743.88 and 120,952.67
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Solution
The fourth proportional to 221,554.67, 305,743.88 and 120,952.67 is: 166,913.82
Step by Step Solution
- Step 1: Write the proportion equation
221,554.67 : 305,743.88 = 120,952.67 : x - Step 2: Convert to fraction form
221,554.67/305,743.88 = 120,952.67/x - Step 3: Cross multiply
221,554.67x = 305,743.88 × 120,952.67 - Step 4: Simplify right side
221,554.67x = 36,980,536,488.68 - Step 5: Solve for x
x = 36,980,536,488.68/221,554.67 - Step 6: Final answer
x = 166,913.82
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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.