Finding the Fourth Proportional to 453,973.20, 680,959.80 and 121,549.20
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Solution
The fourth proportional to 453,973.20, 680,959.80 and 121,549.20 is: 182,323.80
Step by Step Solution
- Step 1: Write the proportion equation
453,973.20 : 680,959.80 = 121,549.20 : x - Step 2: Convert to fraction form
453,973.20/680,959.80 = 121,549.20/x - Step 3: Cross multiply
453,973.20x = 680,959.80 × 121,549.20 - Step 4: Simplify right side
453,973.20x = 82,770,118,922.16 - Step 5: Solve for x
x = 82,770,118,922.16/453,973.20 - Step 6: Final answer
x = 182,323.80
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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.