Finding the Fourth Proportional to 354,724.13, 489,530.11 and 201,784.49
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Solution
The fourth proportional to 354,724.13, 489,530.11 and 201,784.49 is: 278,468.75
Step by Step Solution
- Step 1: Write the proportion equation
354,724.13 : 489,530.11 = 201,784.49 : x - Step 2: Convert to fraction form
354,724.13/489,530.11 = 201,784.49/x - Step 3: Cross multiply
354,724.13x = 489,530.11 × 201,784.49 - Step 4: Simplify right side
354,724.13x = 98,779,583,585.99 - Step 5: Solve for x
x = 98,779,583,585.99/354,724.13 - Step 6: Final answer
x = 278,468.75
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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.