Finding the Fourth Proportional to 283,615.84, 391,384.84 and 154,555.46
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Solution
The fourth proportional to 283,615.84, 391,384.84 and 154,555.46 is: 213,283.80
Step by Step Solution
- Step 1: Write the proportion equation
283,615.84 : 391,384.84 = 154,555.46 : x - Step 2: Convert to fraction form
283,615.84/391,384.84 = 154,555.46/x - Step 3: Cross multiply
283,615.84x = 391,384.84 × 154,555.46 - Step 4: Simplify right side
283,615.84x = 60,490,663,983.23 - Step 5: Solve for x
x = 60,490,663,983.23/283,615.84 - Step 6: Final answer
x = 213,283.80
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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.