Finding the Fourth Proportional to 217,654.62, 326,328.84 and 84,422.58
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Solution
The fourth proportional to 217,654.62, 326,328.84 and 84,422.58 is: 126,574.49
Step by Step Solution
- Step 1: Write the proportion equation
217,654.62 : 326,328.84 = 84,422.58 : x - Step 2: Convert to fraction form
217,654.62/326,328.84 = 84,422.58/x - Step 3: Cross multiply
217,654.62x = 326,328.84 × 84,422.58 - Step 4: Simplify right side
217,654.62x = 27,549,522,601.21 - Step 5: Solve for x
x = 27,549,522,601.21/217,654.62 - Step 6: Final answer
x = 126,574.49
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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.