Finding the Fourth Proportional to 306,341.68, 422,747.76 and 172,205.68
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Solution
The fourth proportional to 306,341.68, 422,747.76 and 172,205.68 is: 237,641.73
Step by Step Solution
- Step 1: Write the proportion equation
306,341.68 : 422,747.76 = 172,205.68 : x - Step 2: Convert to fraction form
306,341.68/422,747.76 = 172,205.68/x - Step 3: Cross multiply
306,341.68x = 422,747.76 × 172,205.68 - Step 4: Simplify right side
306,341.68x = 72,799,565,479.28 - Step 5: Solve for x
x = 72,799,565,479.28/306,341.68 - Step 6: Final answer
x = 237,641.73
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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.