Finding the Fourth Proportional to 422,226.98, 633,406.06 and 141,809.84
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Solution
The fourth proportional to 422,226.98, 633,406.06 and 141,809.84 is: 212,736.79
Step by Step Solution
- Step 1: Write the proportion equation
422,226.98 : 633,406.06 = 141,809.84 : x - Step 2: Convert to fraction form
422,226.98/633,406.06 = 141,809.84/x - Step 3: Cross multiply
422,226.98x = 633,406.06 × 141,809.84 - Step 4: Simplify right side
422,226.98x = 89,823,211,409.14 - Step 5: Solve for x
x = 89,823,211,409.14/422,226.98 - Step 6: Final answer
x = 212,736.79
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1.5x scale
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.