Finding the Fourth Proportional to 279,753.75, 386,054.97 and 155,582.35
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Solution
The fourth proportional to 279,753.75, 386,054.97 and 155,582.35 is: 214,700.75
Step by Step Solution
- Step 1: Write the proportion equation
279,753.75 : 386,054.97 = 155,582.35 : x - Step 2: Convert to fraction form
279,753.75/386,054.97 = 155,582.35/x - Step 3: Cross multiply
279,753.75x = 386,054.97 × 155,582.35 - Step 4: Simplify right side
279,753.75x = 60,063,339,461.78 - Step 5: Solve for x
x = 60,063,339,461.78/279,753.75 - Step 6: Final answer
x = 214,700.75
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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.