Finding the Fourth Proportional to 211,340.13, 291,679.21 and 130,793.59
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Solution
The fourth proportional to 211,340.13, 291,679.21 and 130,793.59 is: 180,513.62
Step by Step Solution
- Step 1: Write the proportion equation
211,340.13 : 291,679.21 = 130,793.59 : x - Step 2: Convert to fraction form
211,340.13/291,679.21 = 130,793.59/x - Step 3: Cross multiply
211,340.13x = 291,679.21 × 130,793.59 - Step 4: Simplify right side
211,340.13x = 38,149,771,004.26 - Step 5: Solve for x
x = 38,149,771,004.26/211,340.13 - Step 6: Final answer
x = 180,513.62
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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.