Finding the Fourth Proportional to 470,863.20, 706,035.60 and 155,157.60
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Solution
The fourth proportional to 470,863.20, 706,035.60 and 155,157.60 is: 232,650.99
Step by Step Solution
- Step 1: Write the proportion equation
470,863.20 : 706,035.60 = 155,157.60 : x - Step 2: Convert to fraction form
470,863.20/706,035.60 = 155,157.60/x - Step 3: Cross multiply
470,863.20x = 706,035.60 × 155,157.60 - Step 4: Simplify right side
470,863.20x = 109,546,789,210.56 - Step 5: Solve for x
x = 109,546,789,210.56/470,863.20 - Step 6: Final answer
x = 232,650.99
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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.