Finding the Fourth Proportional to 278,767.14, 384,700.17 and 171,407.31
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Solution
The fourth proportional to 278,767.14, 384,700.17 and 171,407.31 is: 236,543.02
Step by Step Solution
- Step 1: Write the proportion equation
278,767.14 : 384,700.17 = 171,407.31 : x - Step 2: Convert to fraction form
278,767.14/384,700.17 = 171,407.31/x - Step 3: Cross multiply
278,767.14x = 384,700.17 × 171,407.31 - Step 4: Simplify right side
278,767.14x = 65,940,421,296.24 - Step 5: Solve for x
x = 65,940,421,296.24/278,767.14 - Step 6: Final answer
x = 236,543.02
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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.