Finding the Fourth Proportional to 230,219.80, 317,698.52 and 128,245.12
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Solution
The fourth proportional to 230,219.80, 317,698.52 and 128,245.12 is: 176,975.59
Step by Step Solution
- Step 1: Write the proportion equation
230,219.80 : 317,698.52 = 128,245.12 : x - Step 2: Convert to fraction form
230,219.80/317,698.52 = 128,245.12/x - Step 3: Cross multiply
230,219.80x = 317,698.52 × 128,245.12 - Step 4: Simplify right side
230,219.80x = 40,743,284,821.22 - Step 5: Solve for x
x = 40,743,284,821.22/230,219.80 - Step 6: Final answer
x = 176,975.59
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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.