Finding the Fourth Proportional to 306,000.36, 422,272.12 and 170,030.82
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Solution
The fourth proportional to 306,000.36, 422,272.12 and 170,030.82 is: 234,637.88
Step by Step Solution
- Step 1: Write the proportion equation
306,000.36 : 422,272.12 = 170,030.82 : x - Step 2: Convert to fraction form
306,000.36/422,272.12 = 170,030.82/x - Step 3: Cross multiply
306,000.36x = 422,272.12 × 170,030.82 - Step 4: Simplify right side
306,000.36x = 71,799,274,826.74 - Step 5: Solve for x
x = 71,799,274,826.74/306,000.36 - Step 6: Final answer
x = 234,637.88
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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.