Finding the Fourth Proportional to 214,767.44, 296,385.84 and 128,698.05
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Solution
The fourth proportional to 214,767.44, 296,385.84 and 128,698.05 is: 177,607.37
Step by Step Solution
- Step 1: Write the proportion equation
214,767.44 : 296,385.84 = 128,698.05 : x - Step 2: Convert to fraction form
214,767.44/296,385.84 = 128,698.05/x - Step 3: Cross multiply
214,767.44x = 296,385.84 × 128,698.05 - Step 4: Simplify right side
214,767.44x = 38,144,279,655.61 - Step 5: Solve for x
x = 38,144,279,655.61/214,767.44 - Step 6: Final answer
x = 177,607.37
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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.