Finding the Fourth Proportional to 278,691.71, 384,538.10 and 169,722.99
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Solution
The fourth proportional to 278,691.71, 384,538.10 and 169,722.99 is: 234,183.34
Step by Step Solution
- Step 1: Write the proportion equation
278,691.71 : 384,538.10 = 169,722.99 : x - Step 2: Convert to fraction form
278,691.71/384,538.10 = 169,722.99/x - Step 3: Cross multiply
278,691.71x = 384,538.10 × 169,722.99 - Step 4: Simplify right side
278,691.71x = 65,264,955,252.30 - Step 5: Solve for x
x = 65,264,955,252.30/278,691.71 - Step 6: Final answer
x = 234,183.34
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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.