Finding the Fourth Proportional to 319,184.47, 440,474.36 and 173,990.53
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Solution
The fourth proportional to 319,184.47, 440,474.36 and 173,990.53 is: 240,106.82
Step by Step Solution
- Step 1: Write the proportion equation
319,184.47 : 440,474.36 = 173,990.53 : x - Step 2: Convert to fraction form
319,184.47/440,474.36 = 173,990.53/x - Step 3: Cross multiply
319,184.47x = 440,474.36 × 173,990.53 - Step 4: Simplify right side
319,184.47x = 76,638,366,029.14 - Step 5: Solve for x
x = 76,638,366,029.14/319,184.47 - Step 6: Final answer
x = 240,106.82
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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.