Finding the Fourth Proportional to 373,829.36, 515,877.91 and 212,680.95
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Solution
The fourth proportional to 373,829.36, 515,877.91 and 212,680.95 is: 293,495.95
Step by Step Solution
- Step 1: Write the proportion equation
373,829.36 : 515,877.91 = 212,680.95 : x - Step 2: Convert to fraction form
373,829.36/515,877.91 = 212,680.95/x - Step 3: Cross multiply
373,829.36x = 515,877.91 × 212,680.95 - Step 4: Simplify right side
373,829.36x = 109,717,400,340.02 - Step 5: Solve for x
x = 109,717,400,340.02/373,829.36 - Step 6: Final answer
x = 293,495.95
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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.