Finding the Fourth Proportional to 272,620.10, 408,055.35 and 213,133.70
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Solution
The fourth proportional to 272,620.10, 408,055.35 and 213,133.70 is: 319,016.63
Step by Step Solution
- Step 1: Write the proportion equation
272,620.10 : 408,055.35 = 213,133.70 : x - Step 2: Convert to fraction form
272,620.10/408,055.35 = 213,133.70/x - Step 3: Cross multiply
272,620.10x = 408,055.35 × 213,133.70 - Step 4: Simplify right side
272,620.10x = 86,970,346,550.30 - Step 5: Solve for x
x = 86,970,346,550.30/272,620.10 - Step 6: Final answer
x = 319,016.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.