Finding the Fourth Proportional to 203,417.80, 305,126.70 and 141,209.80
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Solution
The fourth proportional to 203,417.80, 305,126.70 and 141,209.80 is: 211,814.70
Step by Step Solution
- Step 1: Write the proportion equation
203,417.80 : 305,126.70 = 141,209.80 : x - Step 2: Convert to fraction form
203,417.80/305,126.70 = 141,209.80/x - Step 3: Cross multiply
203,417.80x = 305,126.70 × 141,209.80 - Step 4: Simplify right side
203,417.80x = 43,086,880,281.66 - Step 5: Solve for x
x = 43,086,880,281.66/203,417.80 - Step 6: Final answer
x = 211,814.70
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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.