Finding the Fourth Proportional to 290,997.36, 435,572.64 and 190,920.24
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Solution
The fourth proportional to 290,997.36, 435,572.64 and 190,920.24 is: 285,774.53
Step by Step Solution
- Step 1: Write the proportion equation
290,997.36 : 435,572.64 = 190,920.24 : x - Step 2: Convert to fraction form
290,997.36/435,572.64 = 190,920.24/x - Step 3: Cross multiply
290,997.36x = 435,572.64 × 190,920.24 - Step 4: Simplify right side
290,997.36x = 83,159,632,966.23 - Step 5: Solve for x
x = 83,159,632,966.23/290,997.36 - Step 6: Final answer
x = 285,774.53
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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.