Finding the Fourth Proportional to 214,585.74, 295,922.61 and 128,530.98
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Solution
The fourth proportional to 214,585.74, 295,922.61 and 128,530.98 is: 177,249.54
Step by Step Solution
- Step 1: Write the proportion equation
214,585.74 : 295,922.61 = 128,530.98 : x - Step 2: Convert to fraction form
214,585.74/295,922.61 = 128,530.98/x - Step 3: Cross multiply
214,585.74x = 295,922.61 × 128,530.98 - Step 4: Simplify right side
214,585.74x = 38,035,223,067.46 - Step 5: Solve for x
x = 38,035,223,067.46/214,585.74 - Step 6: Final answer
x = 177,249.54
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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.