Finding the Fourth Proportional to 406,762.92, 561,142.98 and 255,943.08
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Solution
The fourth proportional to 406,762.92, 561,142.98 and 255,943.08 is: 353,081.99
Step by Step Solution
- Step 1: Write the proportion equation
406,762.92 : 561,142.98 = 255,943.08 : x - Step 2: Convert to fraction form
406,762.92/561,142.98 = 255,943.08/x - Step 3: Cross multiply
406,762.92x = 561,142.98 × 255,943.08 - Step 4: Simplify right side
406,762.92x = 143,620,662,621.58 - Step 5: Solve for x
x = 143,620,662,621.58/406,762.92 - Step 6: Final answer
x = 353,081.99
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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.