Finding the Fourth Proportional to 221,830.11, 306,124.88 and 121,228.11
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Solution
The fourth proportional to 221,830.11, 306,124.88 and 121,228.11 is: 167,294.42
Step by Step Solution
- Step 1: Write the proportion equation
221,830.11 : 306,124.88 = 121,228.11 : x - Step 2: Convert to fraction form
221,830.11/306,124.88 = 121,228.11/x - Step 3: Cross multiply
221,830.11x = 306,124.88 × 121,228.11 - Step 4: Simplify right side
221,830.11x = 37,110,940,020.24 - Step 5: Solve for x
x = 37,110,940,020.24/221,830.11 - Step 6: Final answer
x = 167,294.42
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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.