Finding the Fourth Proportional to 221,967.47, 306,316.29 and 121,365.47
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Solution
The fourth proportional to 221,967.47, 306,316.29 and 121,365.47 is: 167,484.99
Step by Step Solution
- Step 1: Write the proportion equation
221,967.47 : 306,316.29 = 121,365.47 : x - Step 2: Convert to fraction form
221,967.47/306,316.29 = 121,365.47/x - Step 3: Cross multiply
221,967.47x = 306,316.29 × 121,365.47 - Step 4: Simplify right side
221,967.47x = 37,176,218,366.10 - Step 5: Solve for x
x = 37,176,218,366.10/221,967.47 - Step 6: Final answer
x = 167,484.99
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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.