Finding the Fourth Proportional to 354,794.31, 489,612.17 and 201,828.93
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Solution
The fourth proportional to 354,794.31, 489,612.17 and 201,828.93 is: 278,521.66
Step by Step Solution
- Step 1: Write the proportion equation
354,794.31 : 489,612.17 = 201,828.93 : x - Step 2: Convert to fraction form
354,794.31/489,612.17 = 201,828.93/x - Step 3: Cross multiply
354,794.31x = 489,612.17 × 201,828.93 - Step 4: Simplify right side
354,794.31x = 98,817,899,376.93 - Step 5: Solve for x
x = 98,817,899,376.93/354,794.31 - Step 6: Final answer
x = 278,521.66
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1.5x scale
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.