Finding the Fourth Proportional to 387,215.20, 580,896.48 and 134,486.08
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Solution
The fourth proportional to 387,215.20, 580,896.48 and 134,486.08 is: 201,754.71
Step by Step Solution
- Step 1: Write the proportion equation
387,215.20 : 580,896.48 = 134,486.08 : x - Step 2: Convert to fraction form
387,215.20/580,896.48 = 134,486.08/x - Step 3: Cross multiply
387,215.20x = 580,896.48 × 134,486.08 - Step 4: Simplify right side
387,215.20x = 78,122,490,481.00 - Step 5: Solve for x
x = 78,122,490,481.00/387,215.20 - Step 6: Final answer
x = 201,754.71
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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.