Finding the Fourth Proportional to 354,934.57, 489,852.66 and 202,009.95
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Solution
The fourth proportional to 354,934.57, 489,852.66 and 202,009.95 is: 278,798.17
Step by Step Solution
- Step 1: Write the proportion equation
354,934.57 : 489,852.66 = 202,009.95 : x - Step 2: Convert to fraction form
354,934.57/489,852.66 = 202,009.95/x - Step 3: Cross multiply
354,934.57x = 489,852.66 × 202,009.95 - Step 4: Simplify right side
354,934.57x = 98,955,108,904.70 - Step 5: Solve for x
x = 98,955,108,904.70/354,934.57 - Step 6: Final answer
x = 278,798.17
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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.