Finding the Fourth Proportional to 208,840.06, 288,199.49 and 113,346.80
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Solution
The fourth proportional to 208,840.06, 288,199.49 and 113,346.80 is: 156,418.70
Step by Step Solution
- Step 1: Write the proportion equation
208,840.06 : 288,199.49 = 113,346.80 : x - Step 2: Convert to fraction form
208,840.06/288,199.49 = 113,346.80/x - Step 3: Cross multiply
208,840.06x = 288,199.49 × 113,346.80 - Step 4: Simplify right side
208,840.06x = 32,666,489,953.13 - Step 5: Solve for x
x = 32,666,489,953.13/208,840.06 - Step 6: Final answer
x = 156,418.70
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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.