Finding the Fourth Proportional to 217,868.94, 326,701.35 and 91,482.21
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Solution
The fourth proportional to 217,868.94, 326,701.35 and 91,482.21 is: 137,180.46
Step by Step Solution
- Step 1: Write the proportion equation
217,868.94 : 326,701.35 = 91,482.21 : x - Step 2: Convert to fraction form
217,868.94/326,701.35 = 91,482.21/x - Step 3: Cross multiply
217,868.94x = 326,701.35 × 91,482.21 - Step 4: Simplify right side
217,868.94x = 29,887,361,507.98 - Step 5: Solve for x
x = 29,887,361,507.98/217,868.94 - Step 6: Final answer
x = 137,180.46
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1.5x scale
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.