Finding the Fourth Proportional to 230,324.52, 317,842.65 and 128,349.48
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Solution
The fourth proportional to 230,324.52, 317,842.65 and 128,349.48 is: 177,119.39
Step by Step Solution
- Step 1: Write the proportion equation
230,324.52 : 317,842.65 = 128,349.48 : x - Step 2: Convert to fraction form
230,324.52/317,842.65 = 128,349.48/x - Step 3: Cross multiply
230,324.52x = 317,842.65 × 128,349.48 - Step 4: Simplify right side
230,324.52x = 40,794,938,849.32 - Step 5: Solve for x
x = 40,794,938,849.32/230,324.52 - Step 6: Final answer
x = 177,119.39
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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.