Finding the Fourth Proportional to 283,642.24, 391,426.35 and 154,580.75
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Solution
The fourth proportional to 283,642.24, 391,426.35 and 154,580.75 is: 213,321.47
Step by Step Solution
- Step 1: Write the proportion equation
283,642.24 : 391,426.35 = 154,580.75 : x - Step 2: Convert to fraction form
283,642.24/391,426.35 = 154,580.75/x - Step 3: Cross multiply
283,642.24x = 391,426.35 × 154,580.75 - Step 4: Simplify right side
283,642.24x = 60,506,978,752.76 - Step 5: Solve for x
x = 60,506,978,752.76/283,642.24 - Step 6: Final answer
x = 213,321.47
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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.