Finding the Fourth Proportional to 357,640.75, 536,707.17 and 147,278.68
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Solution
The fourth proportional to 357,640.75, 536,707.17 and 147,278.68 is: 221,019.34
Step by Step Solution
- Step 1: Write the proportion equation
357,640.75 : 536,707.17 = 147,278.68 : x - Step 2: Convert to fraction form
357,640.75/536,707.17 = 147,278.68/x - Step 3: Cross multiply
357,640.75x = 536,707.17 × 147,278.68 - Step 4: Simplify right side
357,640.75x = 79,045,523,544.14 - Step 5: Solve for x
x = 79,045,523,544.14/357,640.75 - Step 6: Final answer
x = 221,019.34
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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.