Finding the Fourth Proportional to 211,037.19, 291,219.78 and 115,525.41
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Solution
The fourth proportional to 211,037.19, 291,219.78 and 115,525.41 is: 159,418.75
Step by Step Solution
- Step 1: Write the proportion equation
211,037.19 : 291,219.78 = 115,525.41 : x - Step 2: Convert to fraction form
211,037.19/291,219.78 = 115,525.41/x - Step 3: Cross multiply
211,037.19x = 291,219.78 × 115,525.41 - Step 4: Simplify right side
211,037.19x = 33,643,284,484.61 - Step 5: Solve for x
x = 33,643,284,484.61/211,037.19 - Step 6: Final answer
x = 159,418.75
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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.