Finding the Fourth Proportional to 401,655.98, 602,486.04 and 135,418.80
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Solution
The fourth proportional to 401,655.98, 602,486.04 and 135,418.80 is: 203,128.90
Step by Step Solution
- Step 1: Write the proportion equation
401,655.98 : 602,486.04 = 135,418.80 : x - Step 2: Convert to fraction form
401,655.98/602,486.04 = 135,418.80/x - Step 3: Cross multiply
401,655.98x = 602,486.04 × 135,418.80 - Step 4: Simplify right side
401,655.98x = 81,587,936,553.55 - Step 5: Solve for x
x = 81,587,936,553.55/401,655.98 - Step 6: Final answer
x = 203,128.90
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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.