Finding the Fourth Proportional to 352,310.95, 486,315.20 and 209,070.99
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Solution
The fourth proportional to 352,310.95, 486,315.20 and 209,070.99 is: 288,592.79
Step by Step Solution
- Step 1: Write the proportion equation
352,310.95 : 486,315.20 = 209,070.99 : x - Step 2: Convert to fraction form
352,310.95/486,315.20 = 209,070.99/x - Step 3: Cross multiply
352,310.95x = 486,315.20 × 209,070.99 - Step 4: Simplify right side
352,310.95x = 101,674,400,316.05 - Step 5: Solve for x
x = 101,674,400,316.05/352,310.95 - Step 6: Final answer
x = 288,592.79
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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.