Finding the Fourth Proportional to 382,869.71, 528,390.71 and 221,727.63
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Solution
The fourth proportional to 382,869.71, 528,390.71 and 221,727.63 is: 306,001.80
Step by Step Solution
- Step 1: Write the proportion equation
382,869.71 : 528,390.71 = 221,727.63 : x - Step 2: Convert to fraction form
382,869.71/528,390.71 = 221,727.63/x - Step 3: Cross multiply
382,869.71x = 528,390.71 × 221,727.63 - Step 4: Simplify right side
382,869.71x = 117,158,819,842.32 - Step 5: Solve for x
x = 117,158,819,842.32/382,869.71 - Step 6: Final answer
x = 306,001.80
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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.