Finding the Fourth Proportional to 215,919.98, 297,969.98 and 120,432.84
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Solution
The fourth proportional to 215,919.98, 297,969.98 and 120,432.84 is: 166,197.55
Step by Step Solution
- Step 1: Write the proportion equation
215,919.98 : 297,969.98 = 120,432.84 : x - Step 2: Convert to fraction form
215,919.98/297,969.98 = 120,432.84/x - Step 3: Cross multiply
215,919.98x = 297,969.98 × 120,432.84 - Step 4: Simplify right side
215,919.98x = 35,885,370,926.14 - Step 5: Solve for x
x = 35,885,370,926.14/215,919.98 - Step 6: Final answer
x = 166,197.55
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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.