Finding the Fourth Proportional to 274,783.65, 379,157.36 and 153,930.03
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Solution
The fourth proportional to 274,783.65, 379,157.36 and 153,930.03 is: 212,398.75
Step by Step Solution
- Step 1: Write the proportion equation
274,783.65 : 379,157.36 = 153,930.03 : x - Step 2: Convert to fraction form
274,783.65/379,157.36 = 153,930.03/x - Step 3: Cross multiply
274,783.65x = 379,157.36 × 153,930.03 - Step 4: Simplify right side
274,783.65x = 58,363,703,799.52 - Step 5: Solve for x
x = 58,363,703,799.52/274,783.65 - Step 6: Final answer
x = 212,398.75
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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.