Finding the Fourth Proportional to 223,107.65, 307,886.84 and 121,131.11
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Solution
The fourth proportional to 223,107.65, 307,886.84 and 121,131.11 is: 167,159.99
Step by Step Solution
- Step 1: Write the proportion equation
223,107.65 : 307,886.84 = 121,131.11 : x - Step 2: Convert to fraction form
223,107.65/307,886.84 = 121,131.11/x - Step 3: Cross multiply
223,107.65x = 307,886.84 × 121,131.11 - Step 4: Simplify right side
223,107.65x = 37,294,672,538.50 - Step 5: Solve for x
x = 37,294,672,538.50/223,107.65 - Step 6: Final answer
x = 167,159.99
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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.