Finding the Fourth Proportional to 272,607.73, 408,994.97 and 139,582.09
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Solution
The fourth proportional to 272,607.73, 408,994.97 and 139,582.09 is: 209,415.82
Step by Step Solution
- Step 1: Write the proportion equation
272,607.73 : 408,994.97 = 139,582.09 : x - Step 2: Convert to fraction form
272,607.73/408,994.97 = 139,582.09/x - Step 3: Cross multiply
272,607.73x = 408,994.97 × 139,582.09 - Step 4: Simplify right side
272,607.73x = 57,088,371,009.97 - Step 5: Solve for x
x = 57,088,371,009.97/272,607.73 - Step 6: Final answer
x = 209,415.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.