Finding the Fourth Proportional to 316,359.94, 436,576.73 and 173,119.99
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Solution
The fourth proportional to 316,359.94, 436,576.73 and 173,119.99 is: 238,905.59
Step by Step Solution
- Step 1: Write the proportion equation
316,359.94 : 436,576.73 = 173,119.99 : x - Step 2: Convert to fraction form
316,359.94/436,576.73 = 173,119.99/x - Step 3: Cross multiply
316,359.94x = 436,576.73 × 173,119.99 - Step 4: Simplify right side
316,359.94x = 75,580,159,131.83 - Step 5: Solve for x
x = 75,580,159,131.83/316,359.94 - Step 6: Final answer
x = 238,905.59
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1.5x scale
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.