Finding the Fourth Proportional to 351,589.83, 527,172.12 and 138,102.18
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Solution
The fourth proportional to 351,589.83, 527,172.12 and 138,102.18 is: 207,069.75
Step by Step Solution
- Step 1: Write the proportion equation
351,589.83 : 527,172.12 = 138,102.18 : x - Step 2: Convert to fraction form
351,589.83/527,172.12 = 138,102.18/x - Step 3: Cross multiply
351,589.83x = 527,172.12 × 138,102.18 - Step 4: Simplify right side
351,589.83x = 72,803,619,007.22 - Step 5: Solve for x
x = 72,803,619,007.22/351,589.83 - Step 6: Final answer
x = 207,069.75
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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.