Finding the Fourth Proportional to 391,370.99, 587,257.34 and 186,437.73
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Solution
The fourth proportional to 391,370.99, 587,257.34 and 186,437.73 is: 279,752.27
Step by Step Solution
- Step 1: Write the proportion equation
391,370.99 : 587,257.34 = 186,437.73 : x - Step 2: Convert to fraction form
391,370.99/587,257.34 = 186,437.73/x - Step 3: Cross multiply
391,370.99x = 587,257.34 × 186,437.73 - Step 4: Simplify right side
391,370.99x = 109,486,922,759.19 - Step 5: Solve for x
x = 109,486,922,759.19/391,370.99 - Step 6: Final answer
x = 279,752.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.