Finding the Fourth Proportional to 315,208.44, 434,987.74 and 202,031.18
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Solution
The fourth proportional to 315,208.44, 434,987.74 and 202,031.18 is: 278,803.09
Step by Step Solution
- Step 1: Write the proportion equation
315,208.44 : 434,987.74 = 202,031.18 : x - Step 2: Convert to fraction form
315,208.44/434,987.74 = 202,031.18/x - Step 3: Cross multiply
315,208.44x = 434,987.74 × 202,031.18 - Step 4: Simplify right side
315,208.44x = 87,881,086,397.73 - Step 5: Solve for x
x = 87,881,086,397.73/315,208.44 - Step 6: Final answer
x = 278,803.09
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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.