Finding the Fourth Proportional to 211,000.58, 291,187.68 and 115,507.28
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Solution
The fourth proportional to 211,000.58, 291,187.68 and 115,507.28 is: 159,403.81
Step by Step Solution
- Step 1: Write the proportion equation
211,000.58 : 291,187.68 = 115,507.28 : x - Step 2: Convert to fraction form
211,000.58/291,187.68 = 115,507.28/x - Step 3: Cross multiply
211,000.58x = 291,187.68 × 115,507.28 - Step 4: Simplify right side
211,000.58x = 33,634,296,886.31 - Step 5: Solve for x
x = 33,634,296,886.31/211,000.58 - Step 6: Final answer
x = 159,403.81
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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.