Finding the Fourth Proportional to 395,326.80, 545,551.20 and 214,038.80
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Solution
The fourth proportional to 395,326.80, 545,551.20 and 214,038.80 is: 295,373.66
Step by Step Solution
- Step 1: Write the proportion equation
395,326.80 : 545,551.20 = 214,038.80 : x - Step 2: Convert to fraction form
395,326.80/545,551.20 = 214,038.80/x - Step 3: Cross multiply
395,326.80x = 545,551.20 × 214,038.80 - Step 4: Simplify right side
395,326.80x = 116,769,124,186.56 - Step 5: Solve for x
x = 116,769,124,186.56/395,326.80 - Step 6: Final answer
x = 295,373.66
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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.