Finding the Fourth Proportional to 282,161.19, 389,387.30 and 154,848.63
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Solution
The fourth proportional to 282,161.19, 389,387.30 and 154,848.63 is: 213,693.77
Step by Step Solution
- Step 1: Write the proportion equation
282,161.19 : 389,387.30 = 154,848.63 : x - Step 2: Convert to fraction form
282,161.19/389,387.30 = 154,848.63/x - Step 3: Cross multiply
282,161.19x = 389,387.30 × 154,848.63 - Step 4: Simplify right side
282,161.19x = 60,296,089,170.16 - Step 5: Solve for x
x = 60,296,089,170.16/282,161.19 - Step 6: Final answer
x = 213,693.77
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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.