Finding the Fourth Proportional to 401,541.75, 602,368.21 and 135,378.38
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Solution
The fourth proportional to 401,541.75, 602,368.21 and 135,378.38 is: 203,086.31
Step by Step Solution
- Step 1: Write the proportion equation
401,541.75 : 602,368.21 = 135,378.38 : x - Step 2: Convert to fraction form
401,541.75/602,368.21 = 135,378.38/x - Step 3: Cross multiply
401,541.75x = 602,368.21 × 135,378.38 - Step 4: Simplify right side
401,541.75x = 81,547,633,600.77 - Step 5: Solve for x
x = 81,547,633,600.77/401,541.75 - Step 6: Final answer
x = 203,086.31
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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.