Finding the Fourth Proportional to 386,805.48, 533,615.76 and 250,873.68
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Solution
The fourth proportional to 386,805.48, 533,615.76 and 250,873.68 is: 346,091.66
Step by Step Solution
- Step 1: Write the proportion equation
386,805.48 : 533,615.76 = 250,873.68 : x - Step 2: Convert to fraction form
386,805.48/533,615.76 = 250,873.68/x - Step 3: Cross multiply
386,805.48x = 533,615.76 × 250,873.68 - Step 4: Simplify right side
386,805.48x = 133,870,149,417.20 - Step 5: Solve for x
x = 133,870,149,417.20/386,805.48 - Step 6: Final answer
x = 346,091.66
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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.