Finding the Fourth Proportional to 354,718.16, 489,491.44 and 201,735.68
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Solution
The fourth proportional to 354,718.16, 489,491.44 and 201,735.68 is: 278,384.08
Step by Step Solution
- Step 1: Write the proportion equation
354,718.16 : 489,491.44 = 201,735.68 : x - Step 2: Convert to fraction form
354,718.16/489,491.44 = 201,735.68/x - Step 3: Cross multiply
354,718.16x = 489,491.44 × 201,735.68 - Step 4: Simplify right side
354,718.16x = 98,747,888,502.58 - Step 5: Solve for x
x = 98,747,888,502.58/354,718.16 - Step 6: Final answer
x = 278,384.08
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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.