Finding the Fourth Proportional to 278,827.68, 384,883.74 and 171,541.56
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Solution
The fourth proportional to 278,827.68, 384,883.74 and 171,541.56 is: 236,789.82
Step by Step Solution
- Step 1: Write the proportion equation
278,827.68 : 384,883.74 = 171,541.56 : x - Step 2: Convert to fraction form
278,827.68/384,883.74 = 171,541.56/x - Step 3: Cross multiply
278,827.68x = 384,883.74 × 171,541.56 - Step 4: Simplify right side
278,827.68x = 66,023,557,178.23 - Step 5: Solve for x
x = 66,023,557,178.23/278,827.68 - Step 6: Final answer
x = 236,789.82
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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.