Finding the Fourth Proportional to 283,358.60, 391,034.26 and 154,295.08
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Solution
The fourth proportional to 283,358.60, 391,034.26 and 154,295.08 is: 212,926.88
Step by Step Solution
- Step 1: Write the proportion equation
283,358.60 : 391,034.26 = 154,295.08 : x - Step 2: Convert to fraction form
283,358.60/391,034.26 = 154,295.08/x - Step 3: Cross multiply
283,358.60x = 391,034.26 × 154,295.08 - Step 4: Simplify right side
283,358.60x = 60,334,662,429.44 - Step 5: Solve for x
x = 60,334,662,429.44/283,358.60 - Step 6: Final answer
x = 212,926.88
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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.