Finding the Fourth Proportional to 640,996.49, 961,549.41 and 167,681.09
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Solution
The fourth proportional to 640,996.49, 961,549.41 and 167,681.09 is: 251,535.94
Step by Step Solution
- Step 1: Write the proportion equation
640,996.49 : 961,549.41 = 167,681.09 : x - Step 2: Convert to fraction form
640,996.49/961,549.41 = 167,681.09/x - Step 3: Cross multiply
640,996.49x = 961,549.41 × 167,681.09 - Step 4: Simplify right side
640,996.49x = 161,233,656,190.34 - Step 5: Solve for x
x = 161,233,656,190.34/640,996.49 - Step 6: Final answer
x = 251,535.94
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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.