Finding the Fourth Proportional to 357,805.45, 493,763.24 and 194,458.12
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Solution
The fourth proportional to 357,805.45, 493,763.24 and 194,458.12 is: 268,347.70
Step by Step Solution
- Step 1: Write the proportion equation
357,805.45 : 493,763.24 = 194,458.12 : x - Step 2: Convert to fraction form
357,805.45/493,763.24 = 194,458.12/x - Step 3: Cross multiply
357,805.45x = 493,763.24 × 194,458.12 - Step 4: Simplify right side
357,805.45x = 96,016,270,627.25 - Step 5: Solve for x
x = 96,016,270,627.25/357,805.45 - Step 6: Final answer
x = 268,347.70
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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.