Finding the Fourth Proportional to 211,010.23, 291,197.72 and 130,435.68
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Solution
The fourth proportional to 211,010.23, 291,197.72 and 130,435.68 is: 180,003.47
Step by Step Solution
- Step 1: Write the proportion equation
211,010.23 : 291,197.72 = 130,435.68 : x - Step 2: Convert to fraction form
211,010.23/291,197.72 = 130,435.68/x - Step 3: Cross multiply
211,010.23x = 291,197.72 × 130,435.68 - Step 4: Simplify right side
211,010.23x = 37,982,572,622.65 - Step 5: Solve for x
x = 37,982,572,622.65/211,010.23 - Step 6: Final answer
x = 180,003.47
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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.