Finding the Fourth Proportional to 202,135.77, 278,948.68 and 111,494.18
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Solution
The fourth proportional to 202,135.77, 278,948.68 and 111,494.18 is: 153,862.70
Step by Step Solution
- Step 1: Write the proportion equation
202,135.77 : 278,948.68 = 111,494.18 : x - Step 2: Convert to fraction form
202,135.77/278,948.68 = 111,494.18/x - Step 3: Cross multiply
202,135.77x = 278,948.68 × 111,494.18 - Step 4: Simplify right side
202,135.77x = 31,101,154,757.32 - Step 5: Solve for x
x = 31,101,154,757.32/202,135.77 - Step 6: Final answer
x = 153,862.70
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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.