Finding the Fourth Proportional to 163,612.20, 245,418.30 and 113,845.80
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Solution
The fourth proportional to 163,612.20, 245,418.30 and 113,845.80 is: 170,768.70
Step by Step Solution
- Step 1: Write the proportion equation
163,612.20 : 245,418.30 = 113,845.80 : x - Step 2: Convert to fraction form
163,612.20/245,418.30 = 113,845.80/x - Step 3: Cross multiply
163,612.20x = 245,418.30 × 113,845.80 - Step 4: Simplify right side
163,612.20x = 27,939,842,698.14 - Step 5: Solve for x
x = 27,939,842,698.14/163,612.20 - Step 6: Final answer
x = 170,768.70
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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.