Finding the Fourth Proportional to 212,424.19, 293,145.36 and 115,628.42
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Solution
The fourth proportional to 212,424.19, 293,145.36 and 115,628.42 is: 159,567.21
Step by Step Solution
- Step 1: Write the proportion equation
212,424.19 : 293,145.36 = 115,628.42 : x - Step 2: Convert to fraction form
212,424.19/293,145.36 = 115,628.42/x - Step 3: Cross multiply
212,424.19x = 293,145.36 × 115,628.42 - Step 4: Simplify right side
212,424.19x = 33,895,934,807.13 - Step 5: Solve for x
x = 33,895,934,807.13/212,424.19 - Step 6: Final answer
x = 159,567.21
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1.5x scale
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.