Finding the Fourth Proportional to 315,201.64, 434,963.10 and 171,953.14
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Solution
The fourth proportional to 315,201.64, 434,963.10 and 171,953.14 is: 237,287.06
Step by Step Solution
- Step 1: Write the proportion equation
315,201.64 : 434,963.10 = 171,953.14 : x - Step 2: Convert to fraction form
315,201.64/434,963.10 = 171,953.14/x - Step 3: Cross multiply
315,201.64x = 434,963.10 × 171,953.14 - Step 4: Simplify right side
315,201.64x = 74,793,270,829.13 - Step 5: Solve for x
x = 74,793,270,829.13/315,201.64 - Step 6: Final answer
x = 237,287.06
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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.