Finding the Fourth Proportional to 290,173.99, 399,781.40 and 224,537.12
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Solution
The fourth proportional to 290,173.99, 399,781.40 and 224,537.12 is: 309,351.52
Step by Step Solution
- Step 1: Write the proportion equation
290,173.99 : 399,781.40 = 224,537.12 : x - Step 2: Convert to fraction form
290,173.99/399,781.40 = 224,537.12/x - Step 3: Cross multiply
290,173.99x = 399,781.40 × 224,537.12 - Step 4: Simplify right side
290,173.99x = 89,765,763,062.88 - Step 5: Solve for x
x = 89,765,763,062.88/290,173.99 - Step 6: Final answer
x = 309,351.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.