Finding the Fourth Proportional to 316,812.25, 475,218.99 and 76,925.14
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Solution
The fourth proportional to 316,812.25, 475,218.99 and 76,925.14 is: 115,387.86
Step by Step Solution
- Step 1: Write the proportion equation
316,812.25 : 475,218.99 = 76,925.14 : x - Step 2: Convert to fraction form
316,812.25/475,218.99 = 76,925.14/x - Step 3: Cross multiply
316,812.25x = 475,218.99 × 76,925.14 - Step 4: Simplify right side
316,812.25x = 36,556,287,336.41 - Step 5: Solve for x
x = 36,556,287,336.41/316,812.25 - Step 6: Final answer
x = 115,387.86
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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.