Finding the Fourth Proportional to 318,422.34, 439,372.76 and 182,430.09
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Solution
The fourth proportional to 318,422.34, 439,372.76 and 182,430.09 is: 251,724.84
Step by Step Solution
- Step 1: Write the proportion equation
318,422.34 : 439,372.76 = 182,430.09 : x - Step 2: Convert to fraction form
318,422.34/439,372.76 = 182,430.09/x - Step 3: Cross multiply
318,422.34x = 439,372.76 × 182,430.09 - Step 4: Simplify right side
318,422.34x = 80,154,811,238.20 - Step 5: Solve for x
x = 80,154,811,238.20/318,422.34 - Step 6: Final answer
x = 251,724.84
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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.