Finding the Fourth Proportional to 485,023.42, 669,332.52 and 281,192.99
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Solution
The fourth proportional to 485,023.42, 669,332.52 and 281,192.99 is: 388,046.45
Step by Step Solution
- Step 1: Write the proportion equation
485,023.42 : 669,332.52 = 281,192.99 : x - Step 2: Convert to fraction form
485,023.42/669,332.52 = 281,192.99/x - Step 3: Cross multiply
485,023.42x = 669,332.52 × 281,192.99 - Step 4: Simplify right side
485,023.42x = 188,211,614,276.37 - Step 5: Solve for x
x = 188,211,614,276.37/485,023.42 - Step 6: Final answer
x = 388,046.45
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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.