Finding the Fourth Proportional to 283,818.23, 391,262.19 and 223,283.75
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Solution
The fourth proportional to 283,818.23, 391,262.19 and 223,283.75 is: 307,811.40
Step by Step Solution
- Step 1: Write the proportion equation
283,818.23 : 391,262.19 = 223,283.75 : x - Step 2: Convert to fraction form
283,818.23/391,262.19 = 223,283.75/x - Step 3: Cross multiply
283,818.23x = 391,262.19 × 223,283.75 - Step 4: Simplify right side
283,818.23x = 87,362,487,060.10 - Step 5: Solve for x
x = 87,362,487,060.10/283,818.23 - Step 6: Final answer
x = 307,811.40
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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.