Finding the Fourth Proportional to 316,011.99, 436,096.59 and 172,772.07
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Solution
The fourth proportional to 316,011.99, 436,096.59 and 172,772.07 is: 238,425.48
Step by Step Solution
- Step 1: Write the proportion equation
316,011.99 : 436,096.59 = 172,772.07 : x - Step 2: Convert to fraction form
316,011.99/436,096.59 = 172,772.07/x - Step 3: Cross multiply
316,011.99x = 436,096.59 × 172,772.07 - Step 4: Simplify right side
316,011.99x = 75,345,310,574.24 - Step 5: Solve for x
x = 75,345,310,574.24/316,011.99 - Step 6: Final answer
x = 238,425.48
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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.