Finding the Fourth Proportional to 212,743.36, 319,348.40 and 88,171.84
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Solution
The fourth proportional to 212,743.36, 319,348.40 and 88,171.84 is: 132,354.48
Step by Step Solution
- Step 1: Write the proportion equation
212,743.36 : 319,348.40 = 88,171.84 : x - Step 2: Convert to fraction form
212,743.36/319,348.40 = 88,171.84/x - Step 3: Cross multiply
212,743.36x = 319,348.40 × 88,171.84 - Step 4: Simplify right side
212,743.36x = 28,157,536,029.06 - Step 5: Solve for x
x = 28,157,536,029.06/212,743.36 - Step 6: Final answer
x = 132,354.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.