Finding the Fourth Proportional to 354,886.03, 489,713.30 and 201,883.51
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Solution
The fourth proportional to 354,886.03, 489,713.30 and 201,883.51 is: 278,582.50
Step by Step Solution
- Step 1: Write the proportion equation
354,886.03 : 489,713.30 = 201,883.51 : x - Step 2: Convert to fraction form
354,886.03/489,713.30 = 201,883.51/x - Step 3: Cross multiply
354,886.03x = 489,713.30 × 201,883.51 - Step 4: Simplify right side
354,886.03x = 98,865,038,421.05 - Step 5: Solve for x
x = 98,865,038,421.05/354,886.03 - Step 6: Final answer
x = 278,582.50
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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.