Finding the Fourth Proportional to 313,240.78, 432,268.68 and 170,000.92
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Solution
The fourth proportional to 313,240.78, 432,268.68 and 170,000.92 is: 234,599.32
Step by Step Solution
- Step 1: Write the proportion equation
313,240.78 : 432,268.68 = 170,000.92 : x - Step 2: Convert to fraction form
313,240.78/432,268.68 = 170,000.92/x - Step 3: Cross multiply
313,240.78x = 432,268.68 × 170,000.92 - Step 4: Simplify right side
313,240.78x = 73,486,073,287.19 - Step 5: Solve for x
x = 73,486,073,287.19/313,240.78 - Step 6: Final answer
x = 234,599.32
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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.