Finding the Fourth Proportional to 221,968.47, 306,317.67 and 121,366.47
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Solution
The fourth proportional to 221,968.47, 306,317.67 and 121,366.47 is: 167,486.37
Step by Step Solution
- Step 1: Write the proportion equation
221,968.47 : 306,317.67 = 121,366.47 : x - Step 2: Convert to fraction form
221,968.47/306,317.67 = 121,366.47/x - Step 3: Cross multiply
221,968.47x = 306,317.67 × 121,366.47 - Step 4: Simplify right side
221,968.47x = 37,176,692,168.10 - Step 5: Solve for x
x = 37,176,692,168.10/221,968.47 - Step 6: Final answer
x = 167,486.37
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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.