Finding the Fourth Proportional to 286,391.96, 395,209.92 and 159,075.68
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Solution
The fourth proportional to 286,391.96, 395,209.92 and 159,075.68 is: 219,518.34
Step by Step Solution
- Step 1: Write the proportion equation
286,391.96 : 395,209.92 = 159,075.68 : x - Step 2: Convert to fraction form
286,391.96/395,209.92 = 159,075.68/x - Step 3: Cross multiply
286,391.96x = 395,209.92 × 159,075.68 - Step 4: Simplify right side
286,391.96x = 62,868,286,766.75 - Step 5: Solve for x
x = 62,868,286,766.75/286,391.96 - Step 6: Final answer
x = 219,518.34
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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.