Finding the Fourth Proportional to 342,748.60, 472,878.60 and 199,478.26
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Solution
The fourth proportional to 342,748.60, 472,878.60 and 199,478.26 is: 275,213.38
Step by Step Solution
- Step 1: Write the proportion equation
342,748.60 : 472,878.60 = 199,478.26 : x - Step 2: Convert to fraction form
342,748.60/472,878.60 = 199,478.26/x - Step 3: Cross multiply
342,748.60x = 472,878.60 × 199,478.26 - Step 4: Simplify right side
342,748.60x = 94,329,000,319.24 - Step 5: Solve for x
x = 94,329,000,319.24/342,748.60 - Step 6: Final answer
x = 275,213.38
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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.