Finding the Fourth Proportional to 345,964.53, 518,943.68 and 109,307.19
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Solution
The fourth proportional to 345,964.53, 518,943.68 and 109,307.19 is: 163,959.80
Step by Step Solution
- Step 1: Write the proportion equation
345,964.53 : 518,943.68 = 109,307.19 : x - Step 2: Convert to fraction form
345,964.53/518,943.68 = 109,307.19/x - Step 3: Cross multiply
345,964.53x = 518,943.68 × 109,307.19 - Step 4: Simplify right side
345,964.53x = 56,724,274,882.52 - Step 5: Solve for x
x = 56,724,274,882.52/345,964.53 - Step 6: Final answer
x = 163,959.80
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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.