Finding the Fourth Proportional to 172,638.25, 238,252.75 and 104,658.09
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Solution
The fourth proportional to 172,638.25, 238,252.75 and 104,658.09 is: 144,435.41
Step by Step Solution
- Step 1: Write the proportion equation
172,638.25 : 238,252.75 = 104,658.09 : x - Step 2: Convert to fraction form
172,638.25/238,252.75 = 104,658.09/x - Step 3: Cross multiply
172,638.25x = 238,252.75 × 104,658.09 - Step 4: Simplify right side
172,638.25x = 24,935,076,597.15 - Step 5: Solve for x
x = 24,935,076,597.15/172,638.25 - Step 6: Final answer
x = 144,435.41
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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.