Finding the Fourth Proportional to 315,128.01, 434,882.52 and 171,893.19
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Solution
The fourth proportional to 315,128.01, 434,882.52 and 171,893.19 is: 237,215.80
Step by Step Solution
- Step 1: Write the proportion equation
315,128.01 : 434,882.52 = 171,893.19 : x - Step 2: Convert to fraction form
315,128.01/434,882.52 = 171,893.19/x - Step 3: Cross multiply
315,128.01x = 434,882.52 × 171,893.19 - Step 4: Simplify right side
315,128.01x = 74,753,343,638.04 - Step 5: Solve for x
x = 74,753,343,638.04/315,128.01 - Step 6: Final answer
x = 237,215.80
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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.