Finding the Fourth Proportional to 290,987.20, 436,808.85 and 224,721.10
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Solution
The fourth proportional to 290,987.20, 436,808.85 and 224,721.10 is: 337,334.99
Step by Step Solution
- Step 1: Write the proportion equation
290,987.20 : 436,808.85 = 224,721.10 : x - Step 2: Convert to fraction form
290,987.20/436,808.85 = 224,721.10/x - Step 3: Cross multiply
290,987.20x = 436,808.85 × 224,721.10 - Step 4: Simplify right side
290,987.20x = 98,160,165,261.74 - Step 5: Solve for x
x = 98,160,165,261.74/290,987.20 - Step 6: Final answer
x = 337,334.99
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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.