Finding the Fourth Proportional to 313,999.45, 471,072.68 and 103,637.18
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Solution
The fourth proportional to 313,999.45, 471,072.68 and 103,637.18 is: 155,480.03
Step by Step Solution
- Step 1: Write the proportion equation
313,999.45 : 471,072.68 = 103,637.18 : x - Step 2: Convert to fraction form
313,999.45/471,072.68 = 103,637.18/x - Step 3: Cross multiply
313,999.45x = 471,072.68 × 103,637.18 - Step 4: Simplify right side
313,999.45x = 48,820,644,130.24 - Step 5: Solve for x
x = 48,820,644,130.24/313,999.45 - Step 6: Final answer
x = 155,480.03
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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.