Finding the Fourth Proportional to 212,712.15, 293,536.94 and 115,913.91
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Solution
The fourth proportional to 212,712.15, 293,536.94 and 115,913.91 is: 159,958.02
Step by Step Solution
- Step 1: Write the proportion equation
212,712.15 : 293,536.94 = 115,913.91 : x - Step 2: Convert to fraction form
212,712.15/293,536.94 = 115,913.91/x - Step 3: Cross multiply
212,712.15x = 293,536.94 × 115,913.91 - Step 4: Simplify right side
212,712.15x = 34,025,013,865.27 - Step 5: Solve for x
x = 34,025,013,865.27/212,712.15 - Step 6: Final answer
x = 159,958.02
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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.