Finding the Fourth Proportional to 261,389.10, 392,083.65 and 202,267.20
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Solution
The fourth proportional to 261,389.10, 392,083.65 and 202,267.20 is: 303,400.80
Step by Step Solution
- Step 1: Write the proportion equation
261,389.10 : 392,083.65 = 202,267.20 : x - Step 2: Convert to fraction form
261,389.10/392,083.65 = 202,267.20/x - Step 3: Cross multiply
261,389.10x = 392,083.65 × 202,267.20 - Step 4: Simplify right side
261,389.10x = 79,305,662,051.28 - Step 5: Solve for x
x = 79,305,662,051.28/261,389.10 - Step 6: Final answer
x = 303,400.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.