Finding the Fourth Proportional to 272,216.13, 408,322.80 and 69,811.31
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Solution
The fourth proportional to 272,216.13, 408,322.80 and 69,811.31 is: 104,716.60
Step by Step Solution
- Step 1: Write the proportion equation
272,216.13 : 408,322.80 = 69,811.31 : x - Step 2: Convert to fraction form
272,216.13/408,322.80 = 69,811.31/x - Step 3: Cross multiply
272,216.13x = 408,322.80 × 69,811.31 - Step 4: Simplify right side
272,216.13x = 28,505,547,529.25 - Step 5: Solve for x
x = 28,505,547,529.25/272,216.13 - Step 6: Final answer
x = 104,716.60
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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.