Finding the Fourth Proportional to 214,564.97, 296,069.44 and 128,503.79
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Solution
The fourth proportional to 214,564.97, 296,069.44 and 128,503.79 is: 177,317.12
Step by Step Solution
- Step 1: Write the proportion equation
214,564.97 : 296,069.44 = 128,503.79 : x - Step 2: Convert to fraction form
214,564.97/296,069.44 = 128,503.79/x - Step 3: Cross multiply
214,564.97x = 296,069.44 × 128,503.79 - Step 4: Simplify right side
214,564.97x = 38,046,043,341.57 - Step 5: Solve for x
x = 38,046,043,341.57/214,564.97 - Step 6: Final answer
x = 177,317.12
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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.