Finding the Fourth Proportional to 272,039.68, 408,058.86 and 72,360.08
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Solution
The fourth proportional to 272,039.68, 408,058.86 and 72,360.08 is: 108,539.94
Step by Step Solution
- Step 1: Write the proportion equation
272,039.68 : 408,058.86 = 72,360.08 : x - Step 2: Convert to fraction form
272,039.68/408,058.86 = 72,360.08/x - Step 3: Cross multiply
272,039.68x = 408,058.86 × 72,360.08 - Step 4: Simplify right side
272,039.68x = 29,527,171,754.31 - Step 5: Solve for x
x = 29,527,171,754.31/272,039.68 - Step 6: Final answer
x = 108,539.94
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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.