Finding the Fourth Proportional to 395,235.99, 545,427.54 and 213,948.07
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Solution
The fourth proportional to 395,235.99, 545,427.54 and 213,948.07 is: 295,249.35
Step by Step Solution
- Step 1: Write the proportion equation
395,235.99 : 545,427.54 = 213,948.07 : x - Step 2: Convert to fraction form
395,235.99/545,427.54 = 213,948.07/x - Step 3: Cross multiply
395,235.99x = 545,427.54 × 213,948.07 - Step 4: Simplify right side
395,235.99x = 116,693,168,144.28 - Step 5: Solve for x
x = 116,693,168,144.28/395,235.99 - Step 6: Final answer
x = 295,249.35
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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.