Finding the Fourth Proportional to 286,820.96, 395,780.84 and 159,488.96
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Solution
The fourth proportional to 286,820.96, 395,780.84 and 159,488.96 is: 220,076.92
Step by Step Solution
- Step 1: Write the proportion equation
286,820.96 : 395,780.84 = 159,488.96 : x - Step 2: Convert to fraction form
286,820.96/395,780.84 = 159,488.96/x - Step 3: Cross multiply
286,820.96x = 395,780.84 × 159,488.96 - Step 4: Simplify right side
286,820.96x = 63,122,674,559.53 - Step 5: Solve for x
x = 63,122,674,559.53/286,820.96 - Step 6: Final answer
x = 220,076.92
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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.