Finding the Fourth Proportional to 211,990.92, 292,425.66 and 132,364.68
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Solution
The fourth proportional to 211,990.92, 292,425.66 and 132,364.68 is: 182,587.20
Step by Step Solution
- Step 1: Write the proportion equation
211,990.92 : 292,425.66 = 132,364.68 : x - Step 2: Convert to fraction form
211,990.92/292,425.66 = 132,364.68/x - Step 3: Cross multiply
211,990.92x = 292,425.66 × 132,364.68 - Step 4: Simplify right side
211,990.92x = 38,706,828,909.69 - Step 5: Solve for x
x = 38,706,828,909.69/211,990.92 - Step 6: Final answer
x = 182,587.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.