Finding the Fourth Proportional to 221,702.16, 306,203.64 and 161,541.84
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Solution
The fourth proportional to 221,702.16, 306,203.64 and 161,541.84 is: 223,113.29
Step by Step Solution
- Step 1: Write the proportion equation
221,702.16 : 306,203.64 = 161,541.84 : x - Step 2: Convert to fraction form
221,702.16/306,203.64 = 161,541.84/x - Step 3: Cross multiply
221,702.16x = 306,203.64 × 161,541.84 - Step 4: Simplify right side
221,702.16x = 49,464,699,420.30 - Step 5: Solve for x
x = 49,464,699,420.30/221,702.16 - Step 6: Final answer
x = 223,113.29
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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.