Finding the Fourth Proportional to 399,305.68, 551,027.40 and 220,453.84
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Solution
The fourth proportional to 399,305.68, 551,027.40 and 220,453.84 is: 304,218.33
Step by Step Solution
- Step 1: Write the proportion equation
399,305.68 : 551,027.40 = 220,453.84 : x - Step 2: Convert to fraction form
399,305.68/551,027.40 = 220,453.84/x - Step 3: Cross multiply
399,305.68x = 551,027.40 × 220,453.84 - Step 4: Simplify right side
399,305.68x = 121,476,106,275.22 - Step 5: Solve for x
x = 121,476,106,275.22/399,305.68 - Step 6: Final answer
x = 304,218.33
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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.