Finding the Fourth Proportional to 310,337.87, 428,348.12 and 183,098.21
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Solution
The fourth proportional to 310,337.87, 428,348.12 and 183,098.21 is: 252,723.82
Step by Step Solution
- Step 1: Write the proportion equation
310,337.87 : 428,348.12 = 183,098.21 : x - Step 2: Convert to fraction form
310,337.87/428,348.12 = 183,098.21/x - Step 3: Cross multiply
310,337.87x = 428,348.12 × 183,098.21 - Step 4: Simplify right side
310,337.87x = 78,429,770,971.63 - Step 5: Solve for x
x = 78,429,770,971.63/310,337.87 - Step 6: Final answer
x = 252,723.82
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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.