Finding the Fourth Proportional to 305,554.84, 421,685.38 and 169,588.79
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Solution
The fourth proportional to 305,554.84, 421,685.38 and 169,588.79 is: 234,043.47
Step by Step Solution
- Step 1: Write the proportion equation
305,554.84 : 421,685.38 = 169,588.79 : x - Step 2: Convert to fraction form
305,554.84/421,685.38 = 169,588.79/x - Step 3: Cross multiply
305,554.84x = 421,685.38 × 169,588.79 - Step 4: Simplify right side
305,554.84x = 71,513,113,985.13 - Step 5: Solve for x
x = 71,513,113,985.13/305,554.84 - Step 6: Final answer
x = 234,043.47
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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.