Finding the Fourth Proportional to 172,304.79, 258,428.01 and 47,616.63
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Solution
The fourth proportional to 172,304.79, 258,428.01 and 47,616.63 is: 71,416.88
Step by Step Solution
- Step 1: Write the proportion equation
172,304.79 : 258,428.01 = 47,616.63 : x - Step 2: Convert to fraction form
172,304.79/258,428.01 = 47,616.63/x - Step 3: Cross multiply
172,304.79x = 258,428.01 × 47,616.63 - Step 4: Simplify right side
172,304.79x = 12,305,470,933.81 - Step 5: Solve for x
x = 12,305,470,933.81/172,304.79 - Step 6: Final answer
x = 71,416.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.