Finding the Fourth Proportional to 357,028.80, 535,529.12 and 120,366.08
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Solution
The fourth proportional to 357,028.80, 535,529.12 and 120,366.08 is: 180,544.37
Step by Step Solution
- Step 1: Write the proportion equation
357,028.80 : 535,529.12 = 120,366.08 : x - Step 2: Convert to fraction form
357,028.80/535,529.12 = 120,366.08/x - Step 3: Cross multiply
357,028.80x = 535,529.12 × 120,366.08 - Step 4: Simplify right side
357,028.80x = 64,459,540,900.25 - Step 5: Solve for x
x = 64,459,540,900.25/357,028.80 - Step 6: Final answer
x = 180,544.37
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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.