Finding the Fourth Proportional to 181,919.20, 272,878.80 and 135,263.20
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Solution
The fourth proportional to 181,919.20, 272,878.80 and 135,263.20 is: 202,894.80
Step by Step Solution
- Step 1: Write the proportion equation
181,919.20 : 272,878.80 = 135,263.20 : x - Step 2: Convert to fraction form
181,919.20/272,878.80 = 135,263.20/x - Step 3: Cross multiply
181,919.20x = 272,878.80 × 135,263.20 - Step 4: Simplify right side
181,919.20x = 36,910,459,700.16 - Step 5: Solve for x
x = 36,910,459,700.16/181,919.20 - Step 6: Final answer
x = 202,894.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.