Finding the Fourth Proportional to 437,242.50, 655,863.75 and 121,707.63
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Solution
The fourth proportional to 437,242.50, 655,863.75 and 121,707.63 is: 182,561.45
Step by Step Solution
- Step 1: Write the proportion equation
437,242.50 : 655,863.75 = 121,707.63 : x - Step 2: Convert to fraction form
437,242.50/655,863.75 = 121,707.63/x - Step 3: Cross multiply
437,242.50x = 655,863.75 × 121,707.63 - Step 4: Simplify right side
437,242.50x = 79,823,622,615.41 - Step 5: Solve for x
x = 79,823,622,615.41/437,242.50 - Step 6: Final answer
x = 182,561.45
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Double scale
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Similar ratio
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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.