Finding the Fourth Proportional to 319,615.44, 479,637.18 and 132,627.12
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Solution
The fourth proportional to 319,615.44, 479,637.18 and 132,627.12 is: 199,029.49
Step by Step Solution
- Step 1: Write the proportion equation
319,615.44 : 479,637.18 = 132,627.12 : x - Step 2: Convert to fraction form
319,615.44/479,637.18 = 132,627.12/x - Step 3: Cross multiply
319,615.44x = 479,637.18 × 132,627.12 - Step 4: Simplify right side
319,615.44x = 63,612,897,828.32 - Step 5: Solve for x
x = 63,612,897,828.32/319,615.44 - Step 6: Final answer
x = 199,029.49
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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.