Finding the Fourth Proportional to 387,674.08, 534,911.78 and 226,497.98
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Solution
The fourth proportional to 387,674.08, 534,911.78 and 226,497.98 is: 312,521.38
Step by Step Solution
- Step 1: Write the proportion equation
387,674.08 : 534,911.78 = 226,497.98 : x - Step 2: Convert to fraction form
387,674.08/534,911.78 = 226,497.98/x - Step 3: Cross multiply
387,674.08x = 534,911.78 × 226,497.98 - Step 4: Simplify right side
387,674.08x = 121,156,439,551.73 - Step 5: Solve for x
x = 121,156,439,551.73/387,674.08 - Step 6: Final answer
x = 312,521.38
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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.