Finding the Fourth Proportional to 395,273.14, 545,477.12 and 213,985.08
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Solution
The fourth proportional to 395,273.14, 545,477.12 and 213,985.08 is: 295,299.51
Step by Step Solution
- Step 1: Write the proportion equation
395,273.14 : 545,477.12 = 213,985.08 : x - Step 2: Convert to fraction form
395,273.14/545,477.12 = 213,985.08/x - Step 3: Cross multiply
395,273.14x = 545,477.12 × 213,985.08 - Step 4: Simplify right side
395,273.14x = 116,723,965,161.37 - Step 5: Solve for x
x = 116,723,965,161.37/395,273.14 - Step 6: Final answer
x = 295,299.51
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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.