Finding the Fourth Proportional to 319,185.47, 440,475.74 and 173,991.53
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Solution
The fourth proportional to 319,185.47, 440,475.74 and 173,991.53 is: 240,108.20
Step by Step Solution
- Step 1: Write the proportion equation
319,185.47 : 440,475.74 = 173,991.53 : x - Step 2: Convert to fraction form
319,185.47/440,475.74 = 173,991.53/x - Step 3: Cross multiply
319,185.47x = 440,475.74 × 173,991.53 - Step 4: Simplify right side
319,185.47x = 76,639,047,930.48 - Step 5: Solve for x
x = 76,639,047,930.48/319,185.47 - Step 6: Final answer
x = 240,108.20
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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.