Finding the Fourth Proportional to 201,805.19, 278,503.13 and 115,763.54
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Solution
The fourth proportional to 201,805.19, 278,503.13 and 115,763.54 is: 159,760.54
Step by Step Solution
- Step 1: Write the proportion equation
201,805.19 : 278,503.13 = 115,763.54 : x - Step 2: Convert to fraction form
201,805.19/278,503.13 = 115,763.54/x - Step 3: Cross multiply
201,805.19x = 278,503.13 × 115,763.54 - Step 4: Simplify right side
201,805.19x = 32,240,506,258.55 - Step 5: Solve for x
x = 32,240,506,258.55/201,805.19 - Step 6: Final answer
x = 159,760.54
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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.