Finding the Fourth Proportional to 418,432.96, 577,434.18 and 227,441.44
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Solution
The fourth proportional to 418,432.96, 577,434.18 and 227,441.44 is: 313,867.39
Step by Step Solution
- Step 1: Write the proportion equation
418,432.96 : 577,434.18 = 227,441.44 : x - Step 2: Convert to fraction form
418,432.96/577,434.18 = 227,441.44/x - Step 3: Cross multiply
418,432.96x = 577,434.18 × 227,441.44 - Step 4: Simplify right side
418,432.96x = 131,332,461,404.42 - Step 5: Solve for x
x = 131,332,461,404.42/418,432.96 - Step 6: Final answer
x = 313,867.39
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1.5x scale
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.