Finding the Fourth Proportional to 211,153.10, 291,392.26 and 115,659.50
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Solution
The fourth proportional to 211,153.10, 291,392.26 and 115,659.50 is: 159,610.65
Step by Step Solution
- Step 1: Write the proportion equation
211,153.10 : 291,392.26 = 115,659.50 : x - Step 2: Convert to fraction form
211,153.10/291,392.26 = 115,659.50/x - Step 3: Cross multiply
211,153.10x = 291,392.26 × 115,659.50 - Step 4: Simplify right side
211,153.10x = 33,702,283,095.47 - Step 5: Solve for x
x = 33,702,283,095.47/211,153.10 - Step 6: Final answer
x = 159,610.65
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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.