Finding the Fourth Proportional to 519,115.14, 778,668.12 and 164,129.40
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Solution
The fourth proportional to 519,115.14, 778,668.12 and 164,129.40 is: 246,192.65
Step by Step Solution
- Step 1: Write the proportion equation
519,115.14 : 778,668.12 = 164,129.40 : x - Step 2: Convert to fraction form
519,115.14/778,668.12 = 164,129.40/x - Step 3: Cross multiply
519,115.14x = 778,668.12 × 164,129.40 - Step 4: Simplify right side
519,115.14x = 127,802,331,334.73 - Step 5: Solve for x
x = 127,802,331,334.73/519,115.14 - Step 6: Final answer
x = 246,192.65
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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.