Finding the Fourth Proportional to 261,203.18, 391,550.36 and 134,985.87
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Solution
The fourth proportional to 261,203.18, 391,550.36 and 134,985.87 is: 202,347.33
Step by Step Solution
- Step 1: Write the proportion equation
261,203.18 : 391,550.36 = 134,985.87 : x - Step 2: Convert to fraction form
261,203.18/391,550.36 = 134,985.87/x - Step 3: Cross multiply
261,203.18x = 391,550.36 × 134,985.87 - Step 4: Simplify right side
261,203.18x = 52,853,765,318.48 - Step 5: Solve for x
x = 52,853,765,318.48/261,203.18 - Step 6: Final answer
x = 202,347.33
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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.