Finding the Fourth Proportional to 345,142.60, 476,203.80 and 201,937.84
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Solution
The fourth proportional to 345,142.60, 476,203.80 and 201,937.84 is: 278,619.81
Step by Step Solution
- Step 1: Write the proportion equation
345,142.60 : 476,203.80 = 201,937.84 : x - Step 2: Convert to fraction form
345,142.60/476,203.80 = 201,937.84/x - Step 3: Cross multiply
345,142.60x = 476,203.80 × 201,937.84 - Step 4: Simplify right side
345,142.60x = 96,163,566,771.79 - Step 5: Solve for x
x = 96,163,566,771.79/345,142.60 - Step 6: Final answer
x = 278,619.81
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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.