Finding the Fourth Proportional to 409,307.31, 614,044.01 and 128,759.31
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Solution
The fourth proportional to 409,307.31, 614,044.01 and 128,759.31 is: 193,165.09
Step by Step Solution
- Step 1: Write the proportion equation
409,307.31 : 614,044.01 = 128,759.31 : x - Step 2: Convert to fraction form
409,307.31/614,044.01 = 128,759.31/x - Step 3: Cross multiply
409,307.31x = 614,044.01 × 128,759.31 - Step 4: Simplify right side
409,307.31x = 79,063,882,393.44 - Step 5: Solve for x
x = 79,063,882,393.44/409,307.31 - Step 6: Final answer
x = 193,165.09
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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.