Finding the Fourth Proportional to 138,477.93, 207,751.92 and 38,638.08
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Solution
The fourth proportional to 138,477.93, 207,751.92 and 38,638.08 is: 57,966.89
Step by Step Solution
- Step 1: Write the proportion equation
138,477.93 : 207,751.92 = 38,638.08 : x - Step 2: Convert to fraction form
138,477.93/207,751.92 = 38,638.08/x - Step 3: Cross multiply
138,477.93x = 207,751.92 × 38,638.08 - Step 4: Simplify right side
138,477.93x = 8,027,135,305.11 - Step 5: Solve for x
x = 8,027,135,305.11/138,477.93 - Step 6: Final answer
x = 57,966.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.