Finding the Fourth Proportional to 394,976.08, 545,132.19 and 242,099.31
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Solution
The fourth proportional to 394,976.08, 545,132.19 and 242,099.31 is: 334,137.02
Step by Step Solution
- Step 1: Write the proportion equation
394,976.08 : 545,132.19 = 242,099.31 : x - Step 2: Convert to fraction form
394,976.08/545,132.19 = 242,099.31/x - Step 3: Cross multiply
394,976.08x = 545,132.19 × 242,099.31 - Step 4: Simplify right side
394,976.08x = 131,976,130,009.91 - Step 5: Solve for x
x = 131,976,130,009.91/394,976.08 - Step 6: Final answer
x = 334,137.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.