Finding the Fourth Proportional to 211,352.10, 291,945.36 and 157,543.62
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Solution
The fourth proportional to 211,352.10, 291,945.36 and 157,543.62 is: 217,618.51
Step by Step Solution
- Step 1: Write the proportion equation
211,352.10 : 291,945.36 = 157,543.62 : x - Step 2: Convert to fraction form
211,352.10/291,945.36 = 157,543.62/x - Step 3: Cross multiply
211,352.10x = 291,945.36 × 157,543.62 - Step 4: Simplify right side
211,352.10x = 45,994,128,856.60 - Step 5: Solve for x
x = 45,994,128,856.60/211,352.10 - Step 6: Final answer
x = 217,618.51
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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.