Finding the Fourth Proportional to 354,766.84, 489,985.50 and 258,400.02
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Solution
The fourth proportional to 354,766.84, 489,985.50 and 258,400.02 is: 356,888.67
Step by Step Solution
- Step 1: Write the proportion equation
354,766.84 : 489,985.50 = 258,400.02 : x - Step 2: Convert to fraction form
354,766.84/489,985.50 = 258,400.02/x - Step 3: Cross multiply
354,766.84x = 489,985.50 × 258,400.02 - Step 4: Simplify right side
354,766.84x = 126,612,265,806.16 - Step 5: Solve for x
x = 126,612,265,806.16/354,766.84 - Step 6: Final answer
x = 356,888.67
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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.