Finding the Fourth Proportional to 258,899.09, 357,257.99 and 144,169.07
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Solution
The fourth proportional to 258,899.09, 357,257.99 and 144,169.07 is: 198,940.64
Step by Step Solution
- Step 1: Write the proportion equation
258,899.09 : 357,257.99 = 144,169.07 : x - Step 2: Convert to fraction form
258,899.09/357,257.99 = 144,169.07/x - Step 3: Cross multiply
258,899.09x = 357,257.99 × 144,169.07 - Step 4: Simplify right side
258,899.09x = 51,505,550,742.50 - Step 5: Solve for x
x = 51,505,550,742.50/258,899.09 - Step 6: Final answer
x = 198,940.64
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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.