Finding the Fourth Proportional to 313,655.49, 432,846.18 and 170,415.90
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Solution
The fourth proportional to 313,655.49, 432,846.18 and 170,415.90 is: 235,174.81
Step by Step Solution
- Step 1: Write the proportion equation
313,655.49 : 432,846.18 = 170,415.90 : x - Step 2: Convert to fraction form
313,655.49/432,846.18 = 170,415.90/x - Step 3: Cross multiply
313,655.49x = 432,846.18 × 170,415.90 - Step 4: Simplify right side
313,655.49x = 73,763,871,326.26 - Step 5: Solve for x
x = 73,763,871,326.26/313,655.49 - Step 6: Final answer
x = 235,174.81
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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.