Finding the Fourth Proportional to 283,763.84, 391,596.78 and 156,443.99
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Solution
The fourth proportional to 283,763.84, 391,596.78 and 156,443.99 is: 215,894.18
Step by Step Solution
- Step 1: Write the proportion equation
283,763.84 : 391,596.78 = 156,443.99 : x - Step 2: Convert to fraction form
283,763.84/391,596.78 = 156,443.99/x - Step 3: Cross multiply
283,763.84x = 391,596.78 × 156,443.99 - Step 4: Simplify right side
283,763.84x = 61,262,960,776.37 - Step 5: Solve for x
x = 61,262,960,776.37/283,763.84 - Step 6: Final answer
x = 215,894.18
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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.