Finding the Fourth Proportional to 312,674.24, 431,498.79 and 190,124.34
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Solution
The fourth proportional to 312,674.24, 431,498.79 and 190,124.34 is: 262,376.66
Step by Step Solution
- Step 1: Write the proportion equation
312,674.24 : 431,498.79 = 190,124.34 : x - Step 2: Convert to fraction form
312,674.24/431,498.79 = 190,124.34/x - Step 3: Cross multiply
312,674.24x = 431,498.79 × 190,124.34 - Step 4: Simplify right side
312,674.24x = 82,038,422,659.55 - Step 5: Solve for x
x = 82,038,422,659.55/312,674.24 - Step 6: Final answer
x = 262,376.66
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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.