Finding the Fourth Proportional to 453,945.70, 680,918.55 and 121,521.70
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Solution
The fourth proportional to 453,945.70, 680,918.55 and 121,521.70 is: 182,282.55
Step by Step Solution
- Step 1: Write the proportion equation
453,945.70 : 680,918.55 = 121,521.70 : x - Step 2: Convert to fraction form
453,945.70/680,918.55 = 121,521.70/x - Step 3: Cross multiply
453,945.70x = 680,918.55 × 121,521.70 - Step 4: Simplify right side
453,945.70x = 82,746,379,757.54 - Step 5: Solve for x
x = 82,746,379,757.54/453,945.70 - Step 6: Final answer
x = 182,282.55
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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.