Finding the Fourth Proportional to 517,113.99, 775,670.99 and 162,156.60
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Solution
The fourth proportional to 517,113.99, 775,670.99 and 162,156.60 is: 243,234.90
Step by Step Solution
- Step 1: Write the proportion equation
517,113.99 : 775,670.99 = 162,156.60 : x - Step 2: Convert to fraction form
517,113.99/775,670.99 = 162,156.60/x - Step 3: Cross multiply
517,113.99x = 775,670.99 × 162,156.60 - Step 4: Simplify right side
517,113.99x = 125,780,169,646.25 - Step 5: Solve for x
x = 125,780,169,646.25/517,113.99 - Step 6: Final answer
x = 243,234.90
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Double scale
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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.