Finding the Fourth Proportional to 217,326.07, 299,909.77 and 121,832.76
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Solution
The fourth proportional to 217,326.07, 299,909.77 and 121,832.76 is: 168,129.09
Step by Step Solution
- Step 1: Write the proportion equation
217,326.07 : 299,909.77 = 121,832.76 : x - Step 2: Convert to fraction form
217,326.07/299,909.77 = 121,832.76/x - Step 3: Cross multiply
217,326.07x = 299,909.77 × 121,832.76 - Step 4: Simplify right side
217,326.07x = 36,538,835,030.07 - Step 5: Solve for x
x = 36,538,835,030.07/217,326.07 - Step 6: Final answer
x = 168,129.09
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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.