Finding the Fourth Proportional to 278,450.34, 384,261.84 and 151,125.93
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Solution
The fourth proportional to 278,450.34, 384,261.84 and 151,125.93 is: 208,553.99
Step by Step Solution
- Step 1: Write the proportion equation
278,450.34 : 384,261.84 = 151,125.93 : x - Step 2: Convert to fraction form
278,450.34/384,261.84 = 151,125.93/x - Step 3: Cross multiply
278,450.34x = 384,261.84 × 151,125.93 - Step 4: Simplify right side
278,450.34x = 58,071,929,374.49 - Step 5: Solve for x
x = 58,071,929,374.49/278,450.34 - Step 6: Final answer
x = 208,553.99
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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.