Finding the Fourth Proportional to 283,605.39, 391,356.99 and 156,281.00
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Solution
The fourth proportional to 283,605.39, 391,356.99 and 156,281.00 is: 215,657.61
Step by Step Solution
- Step 1: Write the proportion equation
283,605.39 : 391,356.99 = 156,281.00 : x - Step 2: Convert to fraction form
283,605.39/391,356.99 = 156,281.00/x - Step 3: Cross multiply
283,605.39x = 391,356.99 × 156,281.00 - Step 4: Simplify right side
283,605.39x = 61,161,659,797.41 - Step 5: Solve for x
x = 61,161,659,797.41/283,605.39 - Step 6: Final answer
x = 215,657.61
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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.