Finding the Fourth Proportional to 211,165.36, 291,408.27 and 115,673.62
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Solution
The fourth proportional to 211,165.36, 291,408.27 and 115,673.62 is: 159,629.64
Step by Step Solution
- Step 1: Write the proportion equation
211,165.36 : 291,408.27 = 115,673.62 : x - Step 2: Convert to fraction form
211,165.36/291,408.27 = 115,673.62/x - Step 3: Cross multiply
211,165.36x = 291,408.27 × 115,673.62 - Step 4: Simplify right side
211,165.36x = 33,708,249,488.84 - Step 5: Solve for x
x = 33,708,249,488.84/211,165.36 - Step 6: Final answer
x = 159,629.64
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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.