Finding the Fourth Proportional to 401,872.35, 602,389.18 and 135,541.29
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Solution
The fourth proportional to 401,872.35, 602,389.18 and 135,541.29 is: 203,170.50
Step by Step Solution
- Step 1: Write the proportion equation
401,872.35 : 602,389.18 = 135,541.29 : x - Step 2: Convert to fraction form
401,872.35/602,389.18 = 135,541.29/x - Step 3: Cross multiply
401,872.35x = 602,389.18 × 135,541.29 - Step 4: Simplify right side
401,872.35x = 81,648,606,539.24 - Step 5: Solve for x
x = 81,648,606,539.24/401,872.35 - Step 6: Final answer
x = 203,170.50
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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.