Finding the Fourth Proportional to 658,135.79, 987,203.67 and 159,499.79
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Solution
The fourth proportional to 658,135.79, 987,203.67 and 159,499.79 is: 239,249.68
Step by Step Solution
- Step 1: Write the proportion equation
658,135.79 : 987,203.67 = 159,499.79 : x - Step 2: Convert to fraction form
658,135.79/987,203.67 = 159,499.79/x - Step 3: Cross multiply
658,135.79x = 987,203.67 × 159,499.79 - Step 4: Simplify right side
658,135.79x = 157,458,773,116.21 - Step 5: Solve for x
x = 157,458,773,116.21/658,135.79 - Step 6: Final answer
x = 239,249.68
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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.