Finding the Fourth Proportional to 272,446.14, 375,969.78 and 157,729.68
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Solution
The fourth proportional to 272,446.14, 375,969.78 and 157,729.68 is: 217,663.55
Step by Step Solution
- Step 1: Write the proportion equation
272,446.14 : 375,969.78 = 157,729.68 : x - Step 2: Convert to fraction form
272,446.14/375,969.78 = 157,729.68/x - Step 3: Cross multiply
272,446.14x = 375,969.78 × 157,729.68 - Step 4: Simplify right side
272,446.14x = 59,301,593,089.07 - Step 5: Solve for x
x = 59,301,593,089.07/272,446.14 - Step 6: Final answer
x = 217,663.55
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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.