Finding the Fourth Proportional to 171,604.11, 257,407.68 and 70,457.79
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Solution
The fourth proportional to 171,604.11, 257,407.68 and 70,457.79 is: 105,687.31
Step by Step Solution
- Step 1: Write the proportion equation
171,604.11 : 257,407.68 = 70,457.79 : x - Step 2: Convert to fraction form
171,604.11/257,407.68 = 70,457.79/x - Step 3: Cross multiply
171,604.11x = 257,407.68 × 70,457.79 - Step 4: Simplify right side
171,604.11x = 18,136,376,526.04 - Step 5: Solve for x
x = 18,136,376,526.04/171,604.11 - Step 6: Final answer
x = 105,687.31
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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.