Finding the Fourth Proportional to 453,195.70, 679,793.55 and 216,999.70
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Solution
The fourth proportional to 453,195.70, 679,793.55 and 216,999.70 is: 325,499.55
Step by Step Solution
- Step 1: Write the proportion equation
453,195.70 : 679,793.55 = 216,999.70 : x - Step 2: Convert to fraction form
453,195.70/679,793.55 = 216,999.70/x - Step 3: Cross multiply
453,195.70x = 679,793.55 × 216,999.70 - Step 4: Simplify right side
453,195.70x = 147,514,996,411.94 - Step 5: Solve for x
x = 147,514,996,411.94/453,195.70 - Step 6: Final answer
x = 325,499.55
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Similar ratio
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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.