Finding the Fourth Proportional to 208,860.24, 288,376.86 and 128,395.62
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Solution
The fourth proportional to 208,860.24, 288,376.86 and 128,395.62 is: 177,278.00
Step by Step Solution
- Step 1: Write the proportion equation
208,860.24 : 288,376.86 = 128,395.62 : x - Step 2: Convert to fraction form
208,860.24/288,376.86 = 128,395.62/x - Step 3: Cross multiply
208,860.24x = 288,376.86 × 128,395.62 - Step 4: Simplify right side
208,860.24x = 37,026,325,733.35 - Step 5: Solve for x
x = 37,026,325,733.35/208,860.24 - Step 6: Final answer
x = 177,278.00
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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.