Finding the Fourth Proportional to 217,148.75, 325,643.06 and 74,957.84
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Solution
The fourth proportional to 217,148.75, 325,643.06 and 74,957.84 is: 112,409.12
Step by Step Solution
- Step 1: Write the proportion equation
217,148.75 : 325,643.06 = 74,957.84 : x - Step 2: Convert to fraction form
217,148.75/325,643.06 = 74,957.84/x - Step 3: Cross multiply
217,148.75x = 325,643.06 × 74,957.84 - Step 4: Simplify right side
217,148.75x = 24,409,498,385.59 - Step 5: Solve for x
x = 24,409,498,385.59/217,148.75 - Step 6: Final answer
x = 112,409.12
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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.