Finding the Fourth Proportional to 498,187.70, 687,501.71 and 271,838.06
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Solution
The fourth proportional to 498,187.70, 687,501.71 and 271,838.06 is: 375,137.98
Step by Step Solution
- Step 1: Write the proportion equation
498,187.70 : 687,501.71 = 271,838.06 : x - Step 2: Convert to fraction form
498,187.70/687,501.71 = 271,838.06/x - Step 3: Cross multiply
498,187.70x = 687,501.71 × 271,838.06 - Step 4: Simplify right side
498,187.70x = 186,889,126,296.38 - Step 5: Solve for x
x = 186,889,126,296.38/498,187.70 - Step 6: Final answer
x = 375,137.98
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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.