Finding the Fourth Proportional to 272,511.31, 375,743.94 and 186,511.79
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Solution
The fourth proportional to 272,511.31, 375,743.94 and 186,511.79 is: 257,166.11
Step by Step Solution
- Step 1: Write the proportion equation
272,511.31 : 375,743.94 = 186,511.79 : x - Step 2: Convert to fraction form
272,511.31/375,743.94 = 186,511.79/x - Step 3: Cross multiply
272,511.31x = 375,743.94 × 186,511.79 - Step 4: Simplify right side
272,511.31x = 70,080,674,831.05 - Step 5: Solve for x
x = 70,080,674,831.05/272,511.31 - Step 6: Final answer
x = 257,166.11
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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.