Finding the Fourth Proportional to 354,539.40, 489,246.39 and 193,393.14
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Solution
The fourth proportional to 354,539.40, 489,246.39 and 193,393.14 is: 266,872.72
Step by Step Solution
- Step 1: Write the proportion equation
354,539.40 : 489,246.39 = 193,393.14 : x - Step 2: Convert to fraction form
354,539.40/489,246.39 = 193,393.14/x - Step 3: Cross multiply
354,539.40x = 489,246.39 × 193,393.14 - Step 4: Simplify right side
354,539.40x = 94,616,895,595.76 - Step 5: Solve for x
x = 94,616,895,595.76/354,539.40 - Step 6: Final answer
x = 266,872.72
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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.