Finding the Fourth Proportional to 283,437.70, 391,129.26 and 176,005.43
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Solution
The fourth proportional to 283,437.70, 391,129.26 and 176,005.43 is: 242,878.32
Step by Step Solution
- Step 1: Write the proportion equation
283,437.70 : 391,129.26 = 176,005.43 : x - Step 2: Convert to fraction form
283,437.70/391,129.26 = 176,005.43/x - Step 3: Cross multiply
283,437.70x = 391,129.26 × 176,005.43 - Step 4: Simplify right side
283,437.70x = 68,840,872,785.17 - Step 5: Solve for x
x = 68,840,872,785.17/283,437.70 - Step 6: Final answer
x = 242,878.32
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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.