Finding the Fourth Proportional to 201,376.30, 302,064.45 and 135,021.10
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Solution
The fourth proportional to 201,376.30, 302,064.45 and 135,021.10 is: 202,531.65
Step by Step Solution
- Step 1: Write the proportion equation
201,376.30 : 302,064.45 = 135,021.10 : x - Step 2: Convert to fraction form
201,376.30/302,064.45 = 135,021.10/x - Step 3: Cross multiply
201,376.30x = 302,064.45 × 135,021.10 - Step 4: Simplify right side
201,376.30x = 40,785,074,309.90 - Step 5: Solve for x
x = 40,785,074,309.90/201,376.30 - Step 6: Final answer
x = 202,531.65
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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.