Finding the Fourth Proportional to 338,909.13, 467,678.81 and 185,943.87
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Solution
The fourth proportional to 338,909.13, 467,678.81 and 185,943.87 is: 256,593.88
Step by Step Solution
- Step 1: Write the proportion equation
338,909.13 : 467,678.81 = 185,943.87 : x - Step 2: Convert to fraction form
338,909.13/467,678.81 = 185,943.87/x - Step 3: Cross multiply
338,909.13x = 467,678.81 × 185,943.87 - Step 4: Simplify right side
338,909.13x = 86,962,008,313.25 - Step 5: Solve for x
x = 86,962,008,313.25/338,909.13 - Step 6: Final answer
x = 256,593.88
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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.