Finding the Fourth Proportional to 387,491.99, 580,999.84 and 134,713.67
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Solution
The fourth proportional to 387,491.99, 580,999.84 and 134,713.67 is: 201,987.71
Step by Step Solution
- Step 1: Write the proportion equation
387,491.99 : 580,999.84 = 134,713.67 : x - Step 2: Convert to fraction form
387,491.99/580,999.84 = 134,713.67/x - Step 3: Cross multiply
387,491.99x = 580,999.84 × 134,713.67 - Step 4: Simplify right side
387,491.99x = 78,268,617,474.03 - Step 5: Solve for x
x = 78,268,617,474.03/387,491.99 - Step 6: Final answer
x = 201,987.71
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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.