Finding the Fourth Proportional to 342,848.22, 512,187.42 and 221,920.08
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Solution
The fourth proportional to 342,848.22, 512,187.42 and 221,920.08 is: 331,530.59
Step by Step Solution
- Step 1: Write the proportion equation
342,848.22 : 512,187.42 = 221,920.08 : x - Step 2: Convert to fraction form
342,848.22/512,187.42 = 221,920.08/x - Step 3: Cross multiply
342,848.22x = 512,187.42 × 221,920.08 - Step 4: Simplify right side
342,848.22x = 113,664,673,221.39 - Step 5: Solve for x
x = 113,664,673,221.39/342,848.22 - Step 6: Final answer
x = 331,530.59
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.