Finding the Fourth Proportional to 279,808.81, 386,124.91 and 152,481.67
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Solution
The fourth proportional to 279,808.81, 386,124.91 and 152,481.67 is: 210,418.58
Step by Step Solution
- Step 1: Write the proportion equation
279,808.81 : 386,124.91 = 152,481.67 : x - Step 2: Convert to fraction form
279,808.81/386,124.91 = 152,481.67/x - Step 3: Cross multiply
279,808.81x = 386,124.91 × 152,481.67 - Step 4: Simplify right side
279,808.81x = 58,876,971,105.40 - Step 5: Solve for x
x = 58,876,971,105.40/279,808.81 - Step 6: Final answer
x = 210,418.58
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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.