Finding the Fourth Proportional to 326,782.84, 490,204.56 and 127,118.44
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Solution
The fourth proportional to 326,782.84, 490,204.56 and 127,118.44 is: 190,689.45
Step by Step Solution
- Step 1: Write the proportion equation
326,782.84 : 490,204.56 = 127,118.44 : x - Step 2: Convert to fraction form
326,782.84/490,204.56 = 127,118.44/x - Step 3: Cross multiply
326,782.84x = 490,204.56 × 127,118.44 - Step 4: Simplify right side
326,782.84x = 62,314,038,948.09 - Step 5: Solve for x
x = 62,314,038,948.09/326,782.84 - Step 6: Final answer
x = 190,689.45
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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.