Finding the Fourth Proportional to 400,043.19, 551,799.48 and 256,575.99
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Solution
The fourth proportional to 400,043.19, 551,799.48 and 256,575.99 is: 353,908.03
Step by Step Solution
- Step 1: Write the proportion equation
400,043.19 : 551,799.48 = 256,575.99 : x - Step 2: Convert to fraction form
400,043.19/551,799.48 = 256,575.99/x - Step 3: Cross multiply
400,043.19x = 551,799.48 × 256,575.99 - Step 4: Simplify right side
400,043.19x = 141,578,497,862.49 - Step 5: Solve for x
x = 141,578,497,862.49/400,043.19 - Step 6: Final answer
x = 353,908.03
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1.5x scale
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.