Finding the Fourth Proportional to 249,102.12, 343,769.22 and 135,931.08
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Solution
The fourth proportional to 249,102.12, 343,769.22 and 135,931.08 is: 187,589.42
Step by Step Solution
- Step 1: Write the proportion equation
249,102.12 : 343,769.22 = 135,931.08 : x - Step 2: Convert to fraction form
249,102.12/343,769.22 = 135,931.08/x - Step 3: Cross multiply
249,102.12x = 343,769.22 × 135,931.08 - Step 4: Simplify right side
249,102.12x = 46,728,921,345.36 - Step 5: Solve for x
x = 46,728,921,345.36/249,102.12 - Step 6: Final answer
x = 187,589.42
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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.