Finding the Fourth Proportional to 313,562.30, 432,718.19 and 170,322.31
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Solution
The fourth proportional to 313,562.30, 432,718.19 and 170,322.31 is: 235,045.99
Step by Step Solution
- Step 1: Write the proportion equation
313,562.30 : 432,718.19 = 170,322.31 : x - Step 2: Convert to fraction form
313,562.30/432,718.19 = 170,322.31/x - Step 3: Cross multiply
313,562.30x = 432,718.19 × 170,322.31 - Step 4: Simplify right side
313,562.30x = 73,701,561,699.82 - Step 5: Solve for x
x = 73,701,561,699.82/313,562.30 - Step 6: Final answer
x = 235,045.99
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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.