Finding the Fourth Proportional to 217,797.12, 326,615.04 and 77,518.08
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Solution
The fourth proportional to 217,797.12, 326,615.04 and 77,518.08 is: 116,248.42
Step by Step Solution
- Step 1: Write the proportion equation
217,797.12 : 326,615.04 = 77,518.08 : x - Step 2: Convert to fraction form
217,797.12/326,615.04 = 77,518.08/x - Step 3: Cross multiply
217,797.12x = 326,615.04 × 77,518.08 - Step 4: Simplify right side
217,797.12x = 25,318,570,799.92 - Step 5: Solve for x
x = 25,318,570,799.92/217,797.12 - Step 6: Final answer
x = 116,248.42
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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.